79674390 has 96 divisors (see below), whose sum is σ = 214302816. Its totient is φ = 20528640.

The previous prime is 79674389. The next prime is 79674401. The reversal of 79674390 is 9347697.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 440100 + ... + 440280.

It is an arithmetic number, because the mean of its divisors is an integer number (2232321).

Almost surely, 2^79674390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79674390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107151408).

79674390 is an abundant number, since it is smaller than the sum of its proper divisors (134628426).

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

79674390 is a wasteful number, since it uses less digits than its factorization.

79674390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 79674390 is about 8926.0511985984. The cubic root of 79674390 is about 430.3015551933.

The spelling of 79674390 in words is "seventy-nine million, six hundred seventy-four thousand, three hundred ninety".