22464887 has 2 divisors, whose sum is σ = 22464888. Its totient is φ = 22464886.

The previous prime is 22464857. The next prime is 22464889. The reversal of 22464887 is 78846422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22464887 - 2¹⁰ = 22463863 is a prime.

It is a super-2 number, since 2×22464887² = 1009342295845538, which contains 22 as substring.

Together with 22464889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22464889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11232443 + 11232444.

It is an arithmetic number, because the mean of its divisors is an integer number (11232444).

Almost surely, 2^22464887 is an apocalyptic number.

22464887 is a deficient number, since it is larger than the sum of its proper divisors (1).

22464887 is an equidigital number, since it uses as much as digits as its factorization.

22464887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172032, while the sum is 41.

The square root of 22464887 is about 4739.7138099257. The cubic root of 22464887 is about 282.1638762131.

The spelling of 22464887 in words is "twenty-two million, four hundred sixty-four thousand, eight hundred eighty-seven".