79556447 has 8 divisors (see below), whose sum is σ = 86954112. Its totient is φ = 72460800.

The previous prime is 79556437. The next prime is 79556459. The reversal of 79556447 is 74465597.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79556447 - 2²⁴ = 62779231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79556417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74954 + ... + 76007.

It is an arithmetic number, because the mean of its divisors is an integer number (10869264).

Almost surely, 2^79556447 is an apocalyptic number.

79556447 is a deficient number, since it is larger than the sum of its proper divisors (7397665).

79556447 is a wasteful number, since it uses less digits than its factorization.

79556447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151009.

The product of its digits is 1058400, while the sum is 47.

The square root of 79556447 is about 8919.4420789644. The cubic root of 79556447 is about 430.0891234052.

The spelling of 79556447 in words is "seventy-nine million, five hundred fifty-six thousand, four hundred forty-seven".