22656965 has 8 divisors (see below), whose sum is σ = 27214488. Its totient is φ = 18108160.

The previous prime is 22656899. The next prime is 22656973. The reversal of 22656965 is 56965622.

It can be written as a sum of positive squares in 4 ways, for example, as 1515361 + 21141604 = 1231^2 + 4598^2 .

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

It is not a de Polignac number, because 22656965 - 2¹⁴ = 22640581 is a prime.

It is a super-2 number, since 2×22656965² = 1026676126022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7289 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (3401811).

Almost surely, 2^22656965 is an apocalyptic number.

It is an amenable number.

22656965 is a deficient number, since it is larger than the sum of its proper divisors (4557523).

22656965 is a wasteful number, since it uses less digits than its factorization.

22656965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359.

The product of its digits is 194400, while the sum is 41.

The square root of 22656965 is about 4759.9332978520. The cubic root of 22656965 is about 282.9657755980.

The spelling of 22656965 in words is "twenty-two million, six hundred fifty-six thousand, nine hundred sixty-five".