99277990 has 16 divisors (see below), whose sum is σ = 204229152. Its totient is φ = 34038144.

The previous prime is 99277979. The next prime is 99278033. The reversal of 99277990 is 9977299.

It is a super-2 number, since 2×99277990² = 19712238596880200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709059 + ... + 709198.

It is an arithmetic number, because the mean of its divisors is an integer number (12764322).

Almost surely, 2^99277990 is an apocalyptic number.

99277990 is an abundant number, since it is smaller than the sum of its proper divisors (104951162).

99277990 is a wasteful number, since it uses less digits than its factorization.

99277990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418271.

The product of its (nonzero) digits is 642978, while the sum is 52.

The square root of 99277990 is about 9963.8341013889. The cubic root of 99277990 is about 463.0390928371.

The spelling of 99277990 in words is "ninety-nine million, two hundred seventy-seven thousand, nine hundred ninety".