872022465 has 12 divisors (see below), whose sum is σ = 1511505684. Its totient is φ = 465078624.

The previous prime is 872022421. The next prime is 872022493. The reversal of 872022465 is 564220278.

It can be written as a sum of positive squares in 2 ways, for example, as 93779856 + 778242609 = 9684^2 + 27897^2 .

It is not a de Polignac number, because 872022465 - 2¹⁵ = 871989697 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9689094 + ... + 9689183.

It is an arithmetic number, because the mean of its divisors is an integer number (125958807).

Almost surely, 2^872022465 is an apocalyptic number.

It is an amenable number.

872022465 is a deficient number, since it is larger than the sum of its proper divisors (639483219).

872022465 is a wasteful number, since it uses less digits than its factorization.

872022465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19378288 (or 19378285 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 872022465 is about 29530.0264984642. The cubic root of 872022465 is about 955.3794404236.

The spelling of 872022465 in words is "eight hundred seventy-two million, twenty-two thousand, four hundred sixty-five".