22670731 has 4 divisors (see below), whose sum is σ = 22682200. Its totient is φ = 22659264.

The previous prime is 22670701. The next prime is 22670759. The reversal of 22670731 is 13707622.

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 22670731 - 2¹⁵ = 22637963 is a prime.

It is a super-2 number, since 2×22670731² = 1027924088148722, 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 22670731.

It is not an unprimeable number, because it can be changed into a prime (22670701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1926 + ... + 7003.

It is an arithmetic number, because the mean of its divisors is an integer number (5670550).

Almost surely, 2^22670731 is an apocalyptic number.

22670731 is a deficient number, since it is larger than the sum of its proper divisors (11469).

22670731 is an equidigital number, since it uses as much as digits as its factorization.

22670731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11468.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 22670731 is about 4761.3791069395. The cubic root of 22670731 is about 283.0230724487.

The spelling of 22670731 in words is "twenty-two million, six hundred seventy thousand, seven hundred thirty-one".