211683964 has 6 divisors (see below), whose sum is σ = 370446944. Its totient is φ = 105841980.

The previous prime is 211683937. The next prime is 211684001. The reversal of 211683964 is 469386112.

211683964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211683964² = 89620201229506592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26460492 + ... + 26460499.

Almost surely, 2^211683964 is an apocalyptic number.

It is an amenable number.

211683964 is a deficient number, since it is larger than the sum of its proper divisors (158762980).

211683964 is a wasteful number, since it uses less digits than its factorization.

211683964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52920995 (or 52920993 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 211683964 is about 14549.3630101115. The cubic root of 211683964 is about 595.9767531434.

The spelling of 211683964 in words is "two hundred eleven million, six hundred eighty-three thousand, nine hundred sixty-four".