79245779 has 4 divisors (see below), whose sum is σ = 79319376. Its totient is φ = 79172184.

The previous prime is 79245773. The next prime is 79245781. The reversal of 79245779 is 97754297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97754297 = 19 ⋅5144963.

It is a cyclic number.

It is not a de Polignac number, because 79245779 - 2⁴ = 79245763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79245773) 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, 35159 + ... + 37344.

It is an arithmetic number, because the mean of its divisors is an integer number (19829844).

Almost surely, 2^79245779 is an apocalyptic number.

79245779 is a deficient number, since it is larger than the sum of its proper divisors (73597).

79245779 is a wasteful number, since it uses less digits than its factorization.

79245779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73596.

The product of its digits is 1111320, while the sum is 50.

The square root of 79245779 is about 8902.0098292464. The cubic root of 79245779 is about 429.5285602944.

The spelling of 79245779 in words is "seventy-nine million, two hundred forty-five thousand, seven hundred seventy-nine".