79478544 has 60 divisors (see below), whose sum is σ = 212279568. Its totient is φ = 25623360.

The previous prime is 79478543. The next prime is 79478563. The reversal of 79478544 is 44587497.

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 = 79478493 and 79478502.

It is not an unprimeable number, because it can be changed into a prime (79478543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45267 + ... + 46989.

Almost surely, 2^79478544 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 79478544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106139784).

79478544 is an abundant number, since it is smaller than the sum of its proper divisors (132801024).

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

79478544 is a wasteful number, since it uses less digits than its factorization.

79478544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1759 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 79478544 is about 8915.0739761373. The cubic root of 79478544 is about 429.9486940769.

The spelling of 79478544 in words is "seventy-nine million, four hundred seventy-eight thousand, five hundred forty-four".