16475891 has 8 divisors (see below), whose sum is σ = 16955568. Its totient is φ = 16000000.

The previous prime is 16475867. The next prime is 16475933. The reversal of 16475891 is 19857461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 10-Lehmer number, since φ(16475891) divides (16475891-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 16475891 - 2¹⁰ = 16474867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16475861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9491 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (2119446).

Almost surely, 2^16475891 is an apocalyptic number.

16475891 is a deficient number, since it is larger than the sum of its proper divisors (479677).

16475891 is a wasteful number, since it uses less digits than its factorization.

16475891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893.

The product of its digits is 60480, while the sum is 41.

The square root of 16475891 is about 4059.0505047363. The cubic root of 16475891 is about 254.4581136686.

The spelling of 16475891 in words is "sixteen million, four hundred seventy-five thousand, eight hundred ninety-one".