16879399 has 4 divisors (see below), whose sum is σ = 16949680. Its totient is φ = 16809120.

The previous prime is 16879339. The next prime is 16879403. The reversal of 16879399 is 99397861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99397861 = 17 ⋅5846933.

It is a cyclic number.

It is not a de Polignac number, because 16879399 - 2⁷ = 16879271 is a prime.

It is a super-2 number, since 2×16879399² = 569828221202402, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16879339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34779 + ... + 35260.

It is an arithmetic number, because the mean of its divisors is an integer number (4237420).

Almost surely, 2^16879399 is an apocalyptic number.

16879399 is a deficient number, since it is larger than the sum of its proper divisors (70281).

16879399 is an equidigital number, since it uses as much as digits as its factorization.

16879399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70280.

The product of its digits is 734832, while the sum is 52.

The square root of 16879399 is about 4108.4545756282. The cubic root of 16879399 is about 256.5186780183.

The spelling of 16879399 in words is "sixteen million, eight hundred seventy-nine thousand, three hundred ninety-nine".