16904261 has 8 divisors (see below), whose sum is σ = 18472800. Its totient is φ = 15341040.

The previous prime is 16904249. The next prime is 16904263. The reversal of 16904261 is 16240961.

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

It is not a de Polignac number, because 16904261 - 2⁶ = 16904197 is a prime.

It is a super-2 number, since 2×16904261² = 571508079912242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16904263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8555 + ... + 10343.

It is an arithmetic number, because the mean of its divisors is an integer number (2309100).

Almost surely, 2^16904261 is an apocalyptic number.

16904261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16904261 is a deficient number, since it is larger than the sum of its proper divisors (1568539).

16904261 is a wasteful number, since it uses less digits than its factorization.

16904261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 16904261 is about 4111.4791742146. The cubic root of 16904261 is about 256.6445600420.

The spelling of 16904261 in words is "sixteen million, nine hundred four thousand, two hundred sixty-one".