212911672 has 32 divisors (see below), whose sum is σ = 424569600. Its totient is φ = 99748864.

The previous prime is 212911639. The next prime is 212911679. The reversal of 212911672 is 276119212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212911679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28329 + ... + 35047.

It is an arithmetic number, because the mean of its divisors is an integer number (13267800).

Almost surely, 2^212911672 is an apocalyptic number.

It is an amenable number.

212911672 is a deficient number, since it is larger than the sum of its proper divisors (211657928).

212911672 is a wasteful number, since it uses less digits than its factorization.

212911672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975 (or 6971 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 212911672 is about 14591.4931381267. The cubic root of 212911672 is about 597.1266992393.

The spelling of 212911672 in words is "two hundred twelve million, nine hundred eleven thousand, six hundred seventy-two".