79547850 has 72 divisors (see below), whose sum is σ = 218741952. Its totient is φ = 20714400.

The previous prime is 79547849. The next prime is 79547861. The reversal of 79547850 is 5874597.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 79547796 and 79547805.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17295 + ... + 21405.

Almost surely, 2^79547850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79547850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109370976).

79547850 is an abundant number, since it is smaller than the sum of its proper divisors (139194102).

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

79547850 is a wasteful number, since it uses less digits than its factorization.

79547850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172 (or 4164 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 79547850 is about 8918.9601411824. The cubic root of 79547850 is about 430.0736308020.

The spelling of 79547850 in words is "seventy-nine million, five hundred forty-seven thousand, eight hundred fifty".