16394851 has 16 divisors (see below), whose sum is σ = 19212768. Its totient is φ = 13824000.

The previous prime is 16394839. The next prime is 16394863. The reversal of 16394851 is 15849361.

It is an interprime number because it is at equal distance from previous prime (16394839) and next prime (16394863).

It is a 12-Lehmer number, since φ(16394851) divides (16394851-1)¹².

It is a cyclic number.

It is not a de Polignac number, because 16394851 - 2⁷ = 16394723 is a prime.

It is a super-3 number, since 3×16394851³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16394851.

It is not an unprimeable number, because it can be changed into a prime (16394351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13051 + ... + 14251.

It is an arithmetic number, because the mean of its divisors is an integer number (1200798).

Almost surely, 2^16394851 is an apocalyptic number.

16394851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16394851 is a deficient number, since it is larger than the sum of its proper divisors (2817917).

16394851 is a wasteful number, since it uses less digits than its factorization.

16394851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302.

The product of its digits is 25920, while the sum is 37.

The square root of 16394851 is about 4049.0555688950. The cubic root of 16394851 is about 254.0402265427.

Subtracting from 16394851 its reverse (15849361), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 16394851 in words is "sixteen million, three hundred ninety-four thousand, eight hundred fifty-one".