79786356 has 96 divisors (see below), whose sum is σ = 215217408. Its totient is φ = 22809600.

The previous prime is 79786309. The next prime is 79786387. The reversal of 79786356 is 65368797.

It is a junction number, because it is equal to n+sod(n) for n = 79786299 and 79786308.

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, 132456 + ... + 133056.

It is an arithmetic number, because the mean of its divisors is an integer number (2241848).

Almost surely, 2^79786356 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 79786356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107608704).

79786356 is an abundant number, since it is smaller than the sum of its proper divisors (135431052).

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

79786356 is a wasteful number, since it uses less digits than its factorization.

79786356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 679 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 79786356 is about 8932.3208630232. The cubic root of 79786356 is about 430.5030276820.

It can be divided in two parts, 797 and 86356, that added together give a triangular number (87153 = T₄₁₇).

The spelling of 79786356 in words is "seventy-nine million, seven hundred eighty-six thousand, three hundred fifty-six".