22820865 has 8 divisors (see below), whose sum is σ = 36513408. Its totient is φ = 12171120.

The previous prime is 22820857. The next prime is 22820873. The reversal of 22820865 is 56802822.

It is an interprime number because it is at equal distance from previous prime (22820857) and next prime (22820873).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22820865 - 2³ = 22820857 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760681 + ... + 760710.

It is an arithmetic number, because the mean of its divisors is an integer number (4564176).

Almost surely, 2^22820865 is an apocalyptic number.

It is an amenable number.

22820865 is a deficient number, since it is larger than the sum of its proper divisors (13692543).

22820865 is a wasteful number, since it uses less digits than its factorization.

22820865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521399.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 22820865 is about 4777.1189015975. The cubic root of 22820865 is about 283.6464596643.

The spelling of 22820865 in words is "twenty-two million, eight hundred twenty thousand, eight hundred sixty-five".