212882664 has 32 divisors (see below), whose sum is σ = 555347520. Its totient is φ = 67875456.

The previous prime is 212882647. The next prime is 212882689. The reversal of 212882664 is 466288212.

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, 192277 + ... + 193380.

It is an arithmetic number, because the mean of its divisors is an integer number (17354610).

Almost surely, 2^212882664 is an apocalyptic number.

212882664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212882664 is an abundant number, since it is smaller than the sum of its proper divisors (342464856).

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

212882664 is a wasteful number, since it uses less digits than its factorization.

212882664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385689 (or 385685 counting only the distinct ones).

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

The square root of 212882664 is about 14590.4991004420. The cubic root of 212882664 is about 597.0995796396.

The spelling of 212882664 in words is "two hundred twelve million, eight hundred eighty-two thousand, six hundred sixty-four".