80435664 has 60 divisors (see below), whose sum is σ = 236964000. Its totient is φ = 25399872.

The previous prime is 80435651. The next prime is 80435681. The reversal of 80435664 is 46653408.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11964 + ... + 17435.

It is an arithmetic number, because the mean of its divisors is an integer number (3949400).

Almost surely, 2^80435664 is an apocalyptic number.

It is an amenable number.

80435664 is an abundant number, since it is smaller than the sum of its proper divisors (156528336).

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

80435664 is a wasteful number, since it uses less digits than its factorization.

80435664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29432 (or 29423 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 80435664 is about 8968.5932007199. The cubic root of 80435664 is about 431.6676971265.

The spelling of 80435664 in words is "eighty million, four hundred thirty-five thousand, six hundred sixty-four".