79477248 has 80 divisors (see below), whose sum is σ = 215566560. Its totient is φ = 26013696.

The previous prime is 79477243. The next prime is 79477249. The reversal of 79477248 is 84277497.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 79477197 and 79477206.

It is not an unprimeable number, because it can be changed into a prime (79477243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90186 + ... + 91062.

It is an arithmetic number, because the mean of its divisors is an integer number (2694582).

Almost surely, 2^79477248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79477248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107783280).

79477248 is an abundant number, since it is smaller than the sum of its proper divisors (136089312).

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

79477248 is an equidigital number, since it uses as much as digits as its factorization.

79477248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 941 counting only the distinct ones).

The product of its digits is 790272, while the sum is 48.

The square root of 79477248 is about 8915.0012899606. The cubic root of 79477248 is about 429.9463571085.

The spelling of 79477248 in words is "seventy-nine million, four hundred seventy-seven thousand, two hundred forty-eight".