79125774 has 64 divisors (see below), whose sum is σ = 195815424. Its totient is φ = 20756736.

The previous prime is 79125763. The next prime is 79125791. The reversal of 79125774 is 47752197.

It is a super-2 number, since 2×79125774² = 12521776222198152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170667 + ... + 171129.

It is an arithmetic number, because the mean of its divisors is an integer number (3059616).

Almost surely, 2^79125774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79125774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97907712).

79125774 is an abundant number, since it is smaller than the sum of its proper divisors (116689650).

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

79125774 is a wasteful number, since it uses less digits than its factorization.

79125774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its digits is 123480, while the sum is 42.

The square root of 79125774 is about 8895.2669437179. The cubic root of 79125774 is about 429.3116334263.

It can be divided in two parts, 791 and 25774, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 79125774 in words is "seventy-nine million, one hundred twenty-five thousand, seven hundred seventy-four".