83664894 has 16 divisors (see below), whose sum is σ = 167454720. Its totient is φ = 27867480.

The previous prime is 83664857. The next prime is 83664901. The reversal of 83664894 is 49846638.

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, 5059 + ... + 13889.

It is an arithmetic number, because the mean of its divisors is an integer number (10465920).

Almost surely, 2^83664894 is an apocalyptic number.

83664894 is an abundant number, since it is smaller than the sum of its proper divisors (83789826).

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

83664894 is a wasteful number, since it uses less digits than its factorization.

83664894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10415.

The product of its digits is 995328, while the sum is 48.

The square root of 83664894 is about 9146.8515894815. The cubic root of 83664894 is about 437.3687556255.

The spelling of 83664894 in words is "eighty-three million, six hundred sixty-four thousand, eight hundred ninety-four".