22921653 has 8 divisors (see below), whose sum is σ = 30618016. Its totient is φ = 15253200.

The previous prime is 22921651. The next prime is 22921663. The reversal of 22921653 is 35612922.

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

It is not a de Polignac number, because 22921653 - 2¹ = 22921651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22921653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22921651) 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, 4978 + ... + 8403.

It is an arithmetic number, because the mean of its divisors is an integer number (3827252).

Almost surely, 2^22921653 is an apocalyptic number.

It is an amenable number.

22921653 is a deficient number, since it is larger than the sum of its proper divisors (7696363).

22921653 is a wasteful number, since it uses less digits than its factorization.

22921653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13955.

The product of its digits is 6480, while the sum is 30.

The square root of 22921653 is about 4787.6563159859. The cubic root of 22921653 is about 284.0634198445.

The spelling of 22921653 in words is "twenty-two million, nine hundred twenty-one thousand, six hundred fifty-three".