16904955 has 16 divisors (see below), whose sum is σ = 27143424. Its totient is φ = 8984160.

The previous prime is 16904947. The next prime is 16904963. The reversal of 16904955 is 55940961.

It is an interprime number because it is at equal distance from previous prime (16904947) and next prime (16904963).

It is not a de Polignac number, because 16904955 - 2³ = 16904947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2770 + ... + 6440.

It is an arithmetic number, because the mean of its divisors is an integer number (1696464).

Almost surely, 2^16904955 is an apocalyptic number.

16904955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16904955 is a deficient number, since it is larger than the sum of its proper divisors (10238469).

16904955 is a wasteful number, since it uses less digits than its factorization.

16904955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 16904955 is about 4111.5635711977. The cubic root of 16904955 is about 256.6480721523.

The spelling of 16904955 in words is "sixteen million, nine hundred four thousand, nine hundred fifty-five".