212757964 has 24 divisors (see below), whose sum is σ = 379476720. Its totient is φ = 104349696.

The previous prime is 212757959. The next prime is 212757973. The reversal of 212757964 is 469757212.

It is a self number, because there is not a number n which added to its sum of digits gives 212757964.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67332 + ... + 70420.

It is an arithmetic number, because the mean of its divisors is an integer number (15811530).

Almost surely, 2^212757964 is an apocalyptic number.

It is an amenable number.

212757964 is a deficient number, since it is larger than the sum of its proper divisors (166718756).

212757964 is a wasteful number, since it uses less digits than its factorization.

212757964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417 (or 3415 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 212757964 is about 14586.2251456640. The cubic root of 212757964 is about 596.9829694541.

The spelling of 212757964 in words is "two hundred twelve million, seven hundred fifty-seven thousand, nine hundred sixty-four".