212865795 has 24 divisors (see below), whose sum is σ = 369622656. Its totient is φ = 113326848.

The previous prime is 212865791. The next prime is 212865799. The reversal of 212865795 is 597568212.

It is an interprime number because it is at equal distance from previous prime (212865791) and next prime (212865799).

It is not a de Polignac number, because 212865795 - 2² = 212865791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 212865795.

It is not an unprimeable number, because it can be changed into a prime (212865791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23419 + ... + 31211.

It is an arithmetic number, because the mean of its divisors is an integer number (15400944).

Almost surely, 2^212865795 is an apocalyptic number.

212865795 is a deficient number, since it is larger than the sum of its proper divisors (156756861).

212865795 is a wasteful number, since it uses less digits than its factorization.

212865795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8411 (or 8408 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 212865795 is about 14589.9210073256. The cubic root of 212865795 is about 597.0838076666.

The spelling of 212865795 in words is "two hundred twelve million, eight hundred sixty-five thousand, seven hundred ninety-five".