83501664 has 24 divisors (see below), whose sum is σ = 219192120. Its totient is φ = 27833856.

The previous prime is 83501653. The next prime is 83501683. The reversal of 83501664 is 46610538.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434809 + ... + 435000.

It is an arithmetic number, because the mean of its divisors is an integer number (9133005).

Almost surely, 2^83501664 is an apocalyptic number.

It is an amenable number.

83501664 is an abundant number, since it is smaller than the sum of its proper divisors (135690456).

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

83501664 is a wasteful number, since it uses less digits than its factorization.

83501664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869822 (or 869814 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 83501664 is about 9137.9244908239. The cubic root of 83501664 is about 437.0841353294.

The spelling of 83501664 in words is "eighty-three million, five hundred one thousand, six hundred sixty-four".