83471664 has 20 divisors (see below), whose sum is σ = 215635256. Its totient is φ = 27823872.

The previous prime is 83471659. The next prime is 83471681. The reversal of 83471664 is 46617438.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869449 + ... + 869544.

Almost surely, 2^83471664 is an apocalyptic number.

It is an amenable number.

83471664 is an abundant number, since it is smaller than the sum of its proper divisors (132163592).

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

83471664 is a wasteful number, since it uses less digits than its factorization.

83471664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739004 (or 1738998 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 83471664 is about 9136.2828327499. The cubic root of 83471664 is about 437.0317846972.

It can be divided in two parts, 8347 and 1664, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 83471664 in words is "eighty-three million, four hundred seventy-one thousand, six hundred sixty-four".