22968731 has 4 divisors (see below), whose sum is σ = 22996512. Its totient is φ = 22940952.

The previous prime is 22968721. The next prime is 22968767. The reversal of 22968731 is 13786922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22968731 is a prime.

It is a super-2 number, since 2×22968731² = 1055125207500722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22968721) 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, 12611 + ... + 14316.

It is an arithmetic number, because the mean of its divisors is an integer number (5749128).

Almost surely, 2^22968731 is an apocalyptic number.

22968731 is a deficient number, since it is larger than the sum of its proper divisors (27781).

22968731 is an equidigital number, since it uses as much as digits as its factorization.

22968731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27780.

The product of its digits is 36288, while the sum is 38.

The square root of 22968731 is about 4792.5703959358. The cubic root of 22968731 is about 284.2577629047.

The spelling of 22968731 in words is "twenty-two million, nine hundred sixty-eight thousand, seven hundred thirty-one".