872297812 has 48 divisors (see below), whose sum is σ = 1648963008. Its totient is φ = 402291200.

The previous prime is 872297791. The next prime is 872297819. The reversal of 872297812 is 218792278.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872297819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734283 + ... + 735469.

It is an arithmetic number, because the mean of its divisors is an integer number (34353396).

Almost surely, 2^872297812 is an apocalyptic number.

It is an amenable number.

872297812 is a deficient number, since it is larger than the sum of its proper divisors (776665196).

872297812 is a wasteful number, since it uses less digits than its factorization.

872297812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1414 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The square root of 872297812 is about 29534.6882834405. The cubic root of 872297812 is about 955.4799856849.

The spelling of 872297812 in words is "eight hundred seventy-two million, two hundred ninety-seven thousand, eight hundred twelve".