99958851 has 24 divisors (see below), whose sum is σ = 151097856. Its totient is φ = 63558000.

The previous prime is 99958843. The next prime is 99958871. The reversal of 99958851 is 15885999.

99958851 is a `hidden beast` number, since 9 + 9 + 9 + 588 + 51 = 666.

It is not a de Polignac number, because 99958851 - 2³ = 99958843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99958811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132726 + ... + 133476.

It is an arithmetic number, because the mean of its divisors is an integer number (6295744).

Almost surely, 2^99958851 is an apocalyptic number.

99958851 is a deficient number, since it is larger than the sum of its proper divisors (51139005).

99958851 is a wasteful number, since it uses less digits than its factorization.

99958851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1420 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 54.

The square root of 99958851 is about 9997.9423383014. The cubic root of 99958851 is about 464.0952090471.

The spelling of 99958851 in words is "ninety-nine million, nine hundred fifty-eight thousand, eight hundred fifty-one".