22920867 has 8 divisors (see below), whose sum is σ = 33956880. Its totient is φ = 15280560.

The previous prime is 22920853. The next prime is 22920881. The reversal of 22920867 is 76802922.

It is an interprime number because it is at equal distance from previous prime (22920853) and next prime (22920881).

It is not a de Polignac number, because 22920867 - 2⁶ = 22920803 is a prime.

It is a super-2 number, since 2×22920867² = 1050732288063378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22921867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424434 + ... + 424487.

It is an arithmetic number, because the mean of its divisors is an integer number (4244610).

Almost surely, 2^22920867 is an apocalyptic number.

22920867 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22920867 is a deficient number, since it is larger than the sum of its proper divisors (11036013).

22920867 is an equidigital number, since it uses as much as digits as its factorization.

22920867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848930 (or 848924 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 22920867 is about 4787.5742291896. The cubic root of 22920867 is about 284.0601728943.

The spelling of 22920867 in words is "twenty-two million, nine hundred twenty thousand, eight hundred sixty-seven".