99791412 has 24 divisors (see below), whose sum is σ = 266110656. Its totient is φ = 28511808.

The previous prime is 99791389. The next prime is 99791431. The reversal of 99791412 is 21419799.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593913 + ... + 594080.

It is an arithmetic number, because the mean of its divisors is an integer number (11087944).

Almost surely, 2^99791412 is an apocalyptic number.

It is an amenable number.

99791412 is an abundant number, since it is smaller than the sum of its proper divisors (166319244).

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

99791412 is a wasteful number, since it uses less digits than its factorization.

99791412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188007 (or 1188005 counting only the distinct ones).

The product of its digits is 40824, while the sum is 42.

The square root of 99791412 is about 9989.5651557012. The cubic root of 99791412 is about 463.8359321340.

The spelling of 99791412 in words is "ninety-nine million, seven hundred ninety-one thousand, four hundred twelve".