16923261 has 16 divisors (see below), whose sum is σ = 22999680. Its totient is φ = 11066880.

The previous prime is 16923253. The next prime is 16923287. The reversal of 16923261 is 16232961.

It is not a de Polignac number, because 16923261 - 2³ = 16923253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16923251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64216 + ... + 64478.

It is an arithmetic number, because the mean of its divisors is an integer number (1437480).

Almost surely, 2^16923261 is an apocalyptic number.

It is an amenable number.

16923261 is a deficient number, since it is larger than the sum of its proper divisors (6076419).

16923261 is a wasteful number, since it uses less digits than its factorization.

16923261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596.

The product of its digits is 3888, while the sum is 30.

The square root of 16923261 is about 4113.7891292578. The cubic root of 16923261 is about 256.7406782308.

The spelling of 16923261 in words is "sixteen million, nine hundred twenty-three thousand, two hundred sixty-one".