22864931 has 4 divisors (see below), whose sum is σ = 22919664. Its totient is φ = 22810200.

The previous prime is 22864913. The next prime is 22864939. The reversal of 22864931 is 13946822.

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

It is a cyclic number.

It is not a de Polignac number, because 22864931 - 2¹⁴ = 22848547 is a prime.

It is a super-2 number, since 2×22864931² = 1045610139269522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22864891 and 22864900.

It is not an unprimeable number, because it can be changed into a prime (22864939) 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, 26735 + ... + 27576.

It is an arithmetic number, because the mean of its divisors is an integer number (5729916).

Almost surely, 2^22864931 is an apocalyptic number.

22864931 is a deficient number, since it is larger than the sum of its proper divisors (54733).

22864931 is an equidigital number, since it uses as much as digits as its factorization.

22864931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54732.

The product of its digits is 20736, while the sum is 35.

The square root of 22864931 is about 4781.7288714439. The cubic root of 22864931 is about 283.8289115333.

The spelling of 22864931 in words is "twenty-two million, eight hundred sixty-four thousand, nine hundred thirty-one".