83684164 has 6 divisors (see below), whose sum is σ = 146447294. Its totient is φ = 41842080.

The previous prime is 83684129. The next prime is 83684179. The reversal of 83684164 is 46148638.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 9000000 = 8642^2 + 3000^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10460517 + ... + 10460524.

Almost surely, 2^83684164 is an apocalyptic number.

It is an amenable number.

83684164 is a deficient number, since it is larger than the sum of its proper divisors (62763130).

83684164 is a wasteful number, since it uses less digits than its factorization.

83684164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20921045 (or 20921043 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 83684164 is about 9147.9048967509. The cubic root of 83684164 is about 437.4023318307.

The spelling of 83684164 in words is "eighty-three million, six hundred eighty-four thousand, one hundred sixty-four".