99976870 has 64 divisors (see below), whose sum is σ = 211507200. Its totient is φ = 33321600.

The previous prime is 99976861. The next prime is 99976897. The reversal of 99976870 is 7867999.

99976870 is a nontrivial binomial coefficient, being equal to C(14141, 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558441 + ... + 558619.

It is an arithmetic number, because the mean of its divisors is an integer number (3304800).

Almost surely, 2^99976870 is an apocalyptic number.

99976870 is the 14140-th triangular number.

99976870 is the 4714-th centered nonagonal number.

99976870 is an abundant number, since it is smaller than the sum of its proper divisors (111530330).

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

99976870 is a wasteful number, since it uses less digits than its factorization.

99976870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The square root of 99976870 is about 9998.8434331177. The cubic root of 99976870 is about 464.1230939519.

The spelling of 99976870 in words is "ninety-nine million, nine hundred seventy-six thousand, eight hundred seventy".