99958158 has 16 divisors (see below), whose sum is σ = 222129360. Its totient is φ = 33319368.

The previous prime is 99958153. The next prime is 99958193. The reversal of 99958158 is 85185999.

99958158 is a `hidden beast` number, since 9 + 9 + 9 + 581 + 58 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1851077 = 99958158 / (9 + 9 + 9 + 5 + 8 + 1 + 5 + 8).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99958151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925485 + ... + 925592.

It is an arithmetic number, because the mean of its divisors is an integer number (13883085).

Almost surely, 2^99958158 is an apocalyptic number.

99958158 is an abundant number, since it is smaller than the sum of its proper divisors (122171202).

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

99958158 is a wasteful number, since it uses less digits than its factorization.

99958158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851088 (or 1851082 counting only the distinct ones).

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

The square root of 99958158 is about 9997.9076811101. The cubic root of 99958158 is about 464.0941365433.

The spelling of 99958158 in words is "ninety-nine million, nine hundred fifty-eight thousand, one hundred fifty-eight".