212632664 has 16 divisors (see below), whose sum is σ = 400172400. Its totient is φ = 105920032.

The previous prime is 212632657. The next prime is 212632681. The reversal of 212632664 is 466236212.

It is a self number, because there is not a number n which added to its sum of digits gives 212632664.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47252 + ... + 51555.

It is an arithmetic number, because the mean of its divisors is an integer number (25010775).

Almost surely, 2^212632664 is an apocalyptic number.

It is an amenable number.

212632664 is a deficient number, since it is larger than the sum of its proper divisors (187539736).

212632664 is a wasteful number, since it uses less digits than its factorization.

212632664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99082 (or 99078 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 212632664 is about 14581.9293647994. The cubic root of 212632664 is about 596.8657522904.

Adding to 212632664 its reverse (466236212), we get a palindrome (678868876).

The spelling of 212632664 in words is "two hundred twelve million, six hundred thirty-two thousand, six hundred sixty-four".