16922885 has 12 divisors (see below), whose sum is σ = 23623308. Its totient is φ = 11604096.

The previous prime is 16922881. The next prime is 16922887. The reversal of 16922885 is 58822961.

It can be written as a sum of positive squares in 2 ways, for example, as 8196769 + 8726116 = 2863^2 + 2954^2 .

It is not a de Polignac number, because 16922885 - 2² = 16922881 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 (16922881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34292 + ... + 34781.

It is an arithmetic number, because the mean of its divisors is an integer number (1968609).

Almost surely, 2^16922885 is an apocalyptic number.

It is an amenable number.

16922885 is a deficient number, since it is larger than the sum of its proper divisors (6700423).

16922885 is an equidigital number, since it uses as much as digits as its factorization.

16922885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69092 (or 69085 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 16922885 is about 4113.7434290437. The cubic root of 16922885 is about 256.7387768004.

The spelling of 16922885 in words is "sixteen million, nine hundred twenty-two thousand, eight hundred eighty-five".