99115898 has 8 divisors (see below), whose sum is σ = 169912992. Its totient is φ = 42478236.

The previous prime is 99115879. The next prime is 99115937. The reversal of 99115898 is 89851199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×99115898² = 19647922472692808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3539840 + ... + 3539867.

It is an arithmetic number, because the mean of its divisors is an integer number (21239124).

Almost surely, 2^99115898 is an apocalyptic number.

99115898 is a deficient number, since it is larger than the sum of its proper divisors (70797094).

99115898 is a wasteful number, since it uses less digits than its factorization.

99115898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7079716.

The product of its digits is 233280, while the sum is 50.

The square root of 99115898 is about 9955.6967611514. The cubic root of 99115898 is about 462.7869529710.

It can be divided in two parts, 9911 and 5898, that multiplied together give a triangular number (58455078 = T₁₀₈₁₂).

The spelling of 99115898 in words is "ninety-nine million, one hundred fifteen thousand, eight hundred ninety-eight".