979447448 has 16 divisors (see below), whose sum is σ = 2098816080. Its totient is φ = 419763168.

The previous prime is 979447439. The next prime is 979447459. The reversal of 979447448 is 844744979.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 17490133 = 979447448 / (9 + 7 + 9 + 4 + 4 + 7 + 4 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 979447393 and 979447402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8745011 + ... + 8745122.

It is an arithmetic number, because the mean of its divisors is an integer number (131176005).

Almost surely, 2^979447448 is an apocalyptic number.

It is an amenable number.

979447448 is an abundant number, since it is smaller than the sum of its proper divisors (1119368632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979447448 is a wasteful number, since it uses less digits than its factorization.

979447448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17490146 (or 17490142 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 56.

The square root of 979447448 is about 31296.1251275617. The cubic root of 979447448 is about 993.1016718251.

The spelling of 979447448 in words is "nine hundred seventy-nine million, four hundred forty-seven thousand, four hundred forty-eight".