16890922 has 8 divisors (see below), whose sum is σ = 25400772. Its totient is φ = 8424000.

The previous prime is 16890917. The next prime is 16890949. The reversal of 16890922 is 22909861.

It can be written as a sum of positive squares in 2 ways, for example, as 9979281 + 6911641 = 3159^2 + 2629^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9729 + ... + 11332.

Almost surely, 2^16890922 is an apocalyptic number.

16890922 is a deficient number, since it is larger than the sum of its proper divisors (8509850).

16890922 is a wasteful number, since it uses less digits than its factorization.

16890922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21464.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 16890922 is about 4109.8566884990. The cubic root of 16890922 is about 256.5770369752.

The spelling of 16890922 in words is "sixteen million, eight hundred ninety thousand, nine hundred twenty-two".