79240099 has 4 divisors (see below), whose sum is σ = 81082936. Its totient is φ = 77397264.

The previous prime is 79240097. The next prime is 79240103. The reversal of 79240099 is 99004297.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79240099 - 2¹ = 79240097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79240097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921354 + ... + 921439.

It is an arithmetic number, because the mean of its divisors is an integer number (20270734).

Almost surely, 2^79240099 is an apocalyptic number.

79240099 is a deficient number, since it is larger than the sum of its proper divisors (1842837).

79240099 is a wasteful number, since it uses less digits than its factorization.

79240099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842836.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 79240099 is about 8901.6907944502. The cubic root of 79240099 is about 429.5182977898.

The spelling of 79240099 in words is "seventy-nine million, two hundred forty thousand, ninety-nine".