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16904101 = 33235087

16904101 has 4 divisors (see below), whose sum is σ = 16912512. Its totient is φ = 16895692.

The previous prime is 16904087. The next prime is 16904113. The reversal of 16904101 is 10140961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10140961 = 10339817.

It is a cyclic number.

It is not a de Polignac number, because 16904101 - 215 = 16871333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16904131) 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 3 ways as a sum of consecutive naturals, for example, 780 + ... + 5866.

It is an arithmetic number, because the mean of its divisors is an integer number (4228128).

It is a 2010-hyperperfect number.

Almost surely, 216904101 is an apocalyptic number.

It is an amenable number.

16904101 is a deficient number, since it is larger than the sum of its proper divisors (8411).

16904101 is an equidigital number, since it uses as much as digits as its factorization.

16904101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 16904101 is about 4111.4597164511. The cubic root of 16904101 is about 256.6437503199.

The spelling of 16904101 in words is "sixteen million, nine hundred four thousand, one hundred one".

Divisors: 1 3323 5087 16904101