22173957 has 24 divisors (see below), whose sum is σ = 34944000. Its totient is φ = 13467168.

The previous prime is 22173941. The next prime is 22173961. The reversal of 22173957 is 75937122.

It is not a de Polignac number, because 22173957 - 2⁴ = 22173941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22173917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8044 + ... + 10442.

It is an arithmetic number, because the mean of its divisors is an integer number (1456000).

Almost surely, 2^22173957 is an apocalyptic number.

It is an amenable number.

22173957 is a deficient number, since it is larger than the sum of its proper divisors (12770043).

22173957 is a wasteful number, since it uses less digits than its factorization.

22173957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497 (or 2494 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 22173957 is about 4708.9231253016. The cubic root of 22173957 is about 280.9405319038.

The spelling of 22173957 in words is "twenty-two million, one hundred seventy-three thousand, nine hundred fifty-seven".