99379791 has 60 divisors (see below), whose sum is σ = 175570032. Its totient is φ = 56010528.

The previous prime is 99379733. The next prime is 99379799. The reversal of 99379791 is 19797399.

It is not a de Polignac number, because 99379791 - 2¹⁰ = 99378767 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99379799) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1361331 + ... + 1361403.

Almost surely, 2^99379791 is an apocalyptic number.

99379791 is a deficient number, since it is larger than the sum of its proper divisors (76190241).

99379791 is an frugal number, since it uses more digits than its factorization.

99379791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 83 counting only the distinct ones).

The product of its digits is 964467, while the sum is 54.

The square root of 99379791 is about 9968.9413179134. The cubic root of 99379791 is about 463.1973076302.

The spelling of 99379791 in words is "ninety-nine million, three hundred seventy-nine thousand, seven hundred ninety-one".