16904499 has 8 divisors (see below), whose sum is σ = 22824960. Its totient is φ = 11126856.

The previous prime is 16904473. The next prime is 16904507. The reversal of 16904499 is 99440961.

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

It is not a de Polignac number, because 16904499 - 2⁵ = 16904467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16904499.

It is not an unprimeable number, because it can be changed into a prime (16904429) 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 7 ways as a sum of consecutive naturals, for example, 35427 + ... + 35900.

It is an arithmetic number, because the mean of its divisors is an integer number (2853120).

Almost surely, 2^16904499 is an apocalyptic number.

16904499 is a deficient number, since it is larger than the sum of its proper divisors (5920461).

16904499 is an equidigital number, since it uses as much as digits as its factorization.

16904499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71409.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 16904499 is about 4111.5081174674. The cubic root of 16904499 is about 256.6457644941.

The spelling of 16904499 in words is "sixteen million, nine hundred four thousand, four hundred ninety-nine".