212685916 has 48 divisors (see below), whose sum is σ = 398497792. Its totient is φ = 99144000.

The previous prime is 212685911. The next prime is 212685919. The reversal of 212685916 is 619586212.

212685916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212685911) 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, 692635 + ... + 692941.

Almost surely, 2^212685916 is an apocalyptic number.

It is an amenable number.

212685916 is a deficient number, since it is larger than the sum of its proper divisors (185811876).

212685916 is a wasteful number, since it uses less digits than its factorization.

212685916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 528 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 212685916 is about 14583.7552091360. The cubic root of 212685916 is about 596.9155747423.

The spelling of 212685916 in words is "two hundred twelve million, six hundred eighty-five thousand, nine hundred sixteen".