79399077 has 16 divisors (see below), whose sum is σ = 109308672. Its totient is φ = 51226560.

The previous prime is 79399069. The next prime is 79399097. The reversal of 79399077 is 77099397.

It is not a de Polignac number, because 79399077 - 2³ = 79399069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79399007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20052 + ... + 23682.

It is an arithmetic number, because the mean of its divisors is an integer number (6831792).

Almost surely, 2^79399077 is an apocalyptic number.

It is an amenable number.

79399077 is a deficient number, since it is larger than the sum of its proper divisors (29909595).

79399077 is a wasteful number, since it uses less digits than its factorization.

79399077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3868.

The product of its (nonzero) digits is 750141, while the sum is 51.

The square root of 79399077 is about 8910.6159719741. The cubic root of 79399077 is about 429.8053508770.

The spelling of 79399077 in words is "seventy-nine million, three hundred ninety-nine thousand, seventy-seven".