99093870 has 48 divisors (see below), whose sum is σ = 266535360. Its totient is φ = 25513152.

The previous prime is 99093823. The next prime is 99093889. The reversal of 99093870 is 7839099.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 16374 + ... + 21593.

It is an arithmetic number, because the mean of its divisors is an integer number (5552820).

Almost surely, 2^99093870 is an apocalyptic number.

99093870 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99093870 is an abundant number, since it is smaller than the sum of its proper divisors (167441490).

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

99093870 is a wasteful number, since it uses less digits than its factorization.

99093870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38009 (or 38006 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 99093870 is about 9954.5903984041. The cubic root of 99093870 is about 462.7526664219.

The spelling of 99093870 in words is "ninety-nine million, ninety-three thousand, eight hundred seventy".