79775826 has 48 divisors (see below), whose sum is σ = 175937664. Its totient is φ = 23972256.

The previous prime is 79775821. The next prime is 79775827. The reversal of 79775826 is 62857797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79775821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172071 + ... + 172533.

It is an arithmetic number, because the mean of its divisors is an integer number (3665368).

Almost surely, 2^79775826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79775826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87968832).

79775826 is an abundant number, since it is smaller than the sum of its proper divisors (96161838).

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

79775826 is a wasteful number, since it uses less digits than its factorization.

79775826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 528 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 51.

The square root of 79775826 is about 8931.7314110983. The cubic root of 79775826 is about 430.4840879511.

It can be divided in two parts, 79775 and 826, that added together give a triangular number (80601 = T₄₀₁).

The spelling of 79775826 in words is "seventy-nine million, seven hundred seventy-five thousand, eight hundred twenty-six".