99135864 has 96 divisors (see below), whose sum is σ = 277739280. Its totient is φ = 31928832.

The previous prime is 99135859. The next prime is 99135877. The reversal of 99135864 is 46853199.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316572 + ... + 316884.

Almost surely, 2^99135864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99135864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138869640).

99135864 is an abundant number, since it is smaller than the sum of its proper divisors (178603416).

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

99135864 is a wasteful number, since it uses less digits than its factorization.

99135864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 454 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 99135864 is about 9956.6994531320. The cubic root of 99135864 is about 462.8180256314.

It can be divided in two parts, 99135 and 864, that added together give a palindrome (99999).

The spelling of 99135864 in words is "ninety-nine million, one hundred thirty-five thousand, eight hundred sixty-four".