212685672 has 16 divisors (see below), whose sum is σ = 531714240. Its totient is φ = 70895216.

The previous prime is 212685667. The next prime is 212685673. The reversal of 212685672 is 276586212.

212685672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212685672.

It is not an unprimeable number, because it can be changed into a prime (212685673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4430928 + ... + 4430975.

It is an arithmetic number, because the mean of its divisors is an integer number (33232140).

Almost surely, 2^212685672 is an apocalyptic number.

It is an amenable number.

212685672 is an abundant number, since it is smaller than the sum of its proper divisors (319028568).

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

212685672 is a wasteful number, since it uses less digits than its factorization.

212685672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8861912 (or 8861908 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 212685672 is about 14583.7468436613. The cubic root of 212685672 is about 596.9153464755.

The spelling of 212685672 in words is "two hundred twelve million, six hundred eighty-five thousand, six hundred seventy-two".