83985064 has 8 divisors (see below), whose sum is σ = 157472010. Its totient is φ = 41992528.

The previous prime is 83985047. The next prime is 83985071. The reversal of 83985064 is 46058938.

It can be written as a sum of positive squares in only one way, i.e., 76422564 + 7562500 = 8742^2 + 2750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 83985064.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5249059 + ... + 5249074.

Almost surely, 2^83985064 is an apocalyptic number.

It is an amenable number.

83985064 is a deficient number, since it is larger than the sum of its proper divisors (73486946).

83985064 is a wasteful number, since it uses less digits than its factorization.

83985064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10498139 (or 10498135 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 83985064 is about 9164.3365280854. The cubic root of 83985064 is about 437.9259551097.

The spelling of 83985064 in words is "eighty-three million, nine hundred eighty-five thousand, sixty-four".