83711964 has 24 divisors (see below), whose sum is σ = 223232128. Its totient is φ = 23917680.

The previous prime is 83711941. The next prime is 83711981. The reversal of 83711964 is 46911738.

It is a congruent number.

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, 498202 + ... + 498369.

Almost surely, 2^83711964 is an apocalyptic number.

83711964 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

83711964 is an abundant number, since it is smaller than the sum of its proper divisors (139520164).

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

83711964 is a wasteful number, since it uses less digits than its factorization.

83711964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996585 (or 996583 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 83711964 is about 9149.4242441806. The cubic root of 83711964 is about 437.4507616968.

The spelling of 83711964 in words is "eighty-three million, seven hundred eleven thousand, nine hundred sixty-four".