212862864 has 40 divisors (see below), whose sum is σ = 567638272. Its totient is φ = 68664960.

The previous prime is 212862851. The next prime is 212862877. The reversal of 212862864 is 468268212.

It is an interprime number because it is at equal distance from previous prime (212862851) and next prime (212862877).

It is a nude number because it is divisible by every one of its digits.

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, 70039 + ... + 73014.

Almost surely, 2^212862864 is an apocalyptic number.

212862864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212862864 is an abundant number, since it is smaller than the sum of its proper divisors (354775408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212862864 is a wasteful number, since it uses less digits than its factorization.

212862864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143095 (or 143089 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 212862864 is about 14589.8205609253. The cubic root of 212862864 is about 597.0810671908.

The spelling of 212862864 in words is "two hundred twelve million, eight hundred sixty-two thousand, eight hundred sixty-four".