212648670 has 48 divisors (see below), whose sum is σ = 595419552. Its totient is φ = 52344000.

The previous prime is 212648669. The next prime is 212648693. The reversal of 212648670 is 76846212.

212648670 is a `hidden beast` number, since 2 + 1 + 2 + 648 + 6 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89706 + ... + 92045.

It is an arithmetic number, because the mean of its divisors is an integer number (12404574).

Almost surely, 2^212648670 is an apocalyptic number.

212648670 is an abundant number, since it is smaller than the sum of its proper divisors (382770882).

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

212648670 is a wasteful number, since it uses less digits than its factorization.

212648670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181777 (or 181774 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 212648670 is about 14582.4781844514. The cubic root of 212648670 is about 596.8807283425.

The spelling of 212648670 in words is "two hundred twelve million, six hundred forty-eight thousand, six hundred seventy".