99860658 has 16 divisors (see below), whose sum is σ = 201159840. Its totient is φ = 33047136.

The previous prime is 99860633. The next prime is 99860671. The reversal of 99860658 is 85606899.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99860658.

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, 59035 + ... + 60702.

It is an arithmetic number, because the mean of its divisors is an integer number (12572490).

Almost surely, 2^99860658 is an apocalyptic number.

99860658 is an abundant number, since it is smaller than the sum of its proper divisors (101299182).

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

99860658 is a wasteful number, since it uses less digits than its factorization.

99860658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119881.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 99860658 is about 9993.0304712835. The cubic root of 99860658 is about 463.9431937244.

The spelling of 99860658 in words is "ninety-nine million, eight hundred sixty thousand, six hundred fifty-eight".