79494774 has 16 divisors (see below), whose sum is σ = 159966912. Its totient is φ = 26335368.

The previous prime is 79494749. The next prime is 79494847. The reversal of 79494774 is 47749497.

It is a super-2 number, since 2×79494774² = 12638838186622152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39664 + ... + 41619.

It is an arithmetic number, because the mean of its divisors is an integer number (9997932).

Almost surely, 2^79494774 is an apocalyptic number.

79494774 is an abundant number, since it is smaller than the sum of its proper divisors (80472138).

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

79494774 is a wasteful number, since it uses less digits than its factorization.

79494774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81451.

The product of its digits is 1778112, while the sum is 51.

The square root of 79494774 is about 8915.9841857195. The cubic root of 79494774 is about 429.9779581274.

The spelling of 79494774 in words is "seventy-nine million, four hundred ninety-four thousand, seven hundred seventy-four".