79444579 has 4 divisors (see below), whose sum is σ = 79568776. Its totient is φ = 79320384.

The previous prime is 79444571. The next prime is 79444597. The reversal of 79444579 is 97544497.

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 79444579 - 2³ = 79444571 is a prime.

It is a super-2 number, since 2×79444579² = 12622882264974482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79444571) 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, 61134 + ... + 62419.

It is an arithmetic number, because the mean of its divisors is an integer number (19892194).

Almost surely, 2^79444579 is an apocalyptic number.

79444579 is a deficient number, since it is larger than the sum of its proper divisors (124197).

79444579 is a wasteful number, since it uses less digits than its factorization.

79444579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124196.

The product of its digits is 1270080, while the sum is 49.

The square root of 79444579 is about 8913.1688528828. The cubic root of 79444579 is about 429.8874394398.

The spelling of 79444579 in words is "seventy-nine million, four hundred forty-four thousand, five hundred seventy-nine".