80099964 has 36 divisors (see below), whose sum is σ = 231400624. Its totient is φ = 22885632.

The previous prime is 80099963. The next prime is 80099983. The reversal of 80099964 is 46999008.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80099963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158677 + ... + 159180.

Almost surely, 2^80099964 is an apocalyptic number.

80099964 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80099964 is an abundant number, since it is smaller than the sum of its proper divisors (151300660).

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

80099964 is a wasteful number, since it uses less digits than its factorization.

80099964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317874 (or 317869 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 80099964 is about 8949.8583229010. The cubic root of 80099964 is about 431.0663348964.

The spelling of 80099964 in words is "eighty million, ninety-nine thousand, nine hundred sixty-four".