22608631 has 4 divisors (see below), whose sum is σ = 22618264. Its totient is φ = 22599000.

The previous prime is 22608629. The next prime is 22608637. The reversal of 22608631 is 13680622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22608631 - 2¹ = 22608629 is a prime.

It is a super-2 number, since 2×22608631² = 1022300391388322, which contains 22 as substring.

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 22608631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22608637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261 + ... + 6841.

It is an arithmetic number, because the mean of its divisors is an integer number (5654566).

Almost surely, 2^22608631 is an apocalyptic number.

22608631 is a deficient number, since it is larger than the sum of its proper divisors (9633).

22608631 is an equidigital number, since it uses as much as digits as its factorization.

22608631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9632.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22608631 is about 4754.8534151959. The cubic root of 22608631 is about 282.7644158110.

The spelling of 22608631 in words is "twenty-two million, six hundred eight thousand, six hundred thirty-one".