99000080 has 20 divisors (see below), whose sum is σ = 230175372. Its totient is φ = 39600000.

The previous prime is 99000079. The next prime is 99000101. The reversal of 99000080 is 8000099.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19219456 + 79780624 = 4384^2 + 8932^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618671 + ... + 618830.

Almost surely, 2^99000080 is an apocalyptic number.

It is an amenable number.

99000080 is an abundant number, since it is smaller than the sum of its proper divisors (131175292).

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

99000080 is a wasteful number, since it uses less digits than its factorization.

99000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237514 (or 1237508 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 99000080 is about 9949.8783912166. The cubic root of 99000080 is about 462.6066255261.

The spelling of 99000080 in words is "ninety-nine million, eighty", and thus it is an aban number and an uban number.