79448847 has 8 divisors (see below), whose sum is σ = 108185856. Its totient is φ = 51838872.

The previous prime is 79448843. The next prime is 79448851. The reversal of 79448847 is 74884497.

It is an interprime number because it is at equal distance from previous prime (79448843) and next prime (79448851).

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

It is not a de Polignac number, because 79448847 - 2² = 79448843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79448847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79448843) 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, 281593 + ... + 281874.

It is an arithmetic number, because the mean of its divisors is an integer number (13523232).

Almost surely, 2^79448847 is an apocalyptic number.

79448847 is a deficient number, since it is larger than the sum of its proper divisors (28737009).

79448847 is a wasteful number, since it uses less digits than its factorization.

79448847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563517.

The product of its digits is 1806336, while the sum is 51.

The square root of 79448847 is about 8913.4082706897. The cubic root of 79448847 is about 429.8951375809.

The spelling of 79448847 in words is "seventy-nine million, four hundred forty-eight thousand, eight hundred forty-seven".