212608664 has 64 divisors (see below), whose sum is σ = 439603200. Its totient is φ = 95961600.

The previous prime is 212608661. The next prime is 212608673. The reversal of 212608664 is 466806212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212608661) 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, 889457 + ... + 889695.

It is an arithmetic number, because the mean of its divisors is an integer number (6868800).

Almost surely, 2^212608664 is an apocalyptic number.

It is an amenable number.

212608664 is an abundant number, since it is smaller than the sum of its proper divisors (226994536).

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

212608664 is a wasteful number, since it uses less digits than its factorization.

212608664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 212608664 is about 14581.1064052081. The cubic root of 212608664 is about 596.8432952248.

The spelling of 212608664 in words is "two hundred twelve million, six hundred eight thousand, six hundred sixty-four".