79486394 has 16 divisors (see below), whose sum is σ = 129676680. Its totient is φ = 36321600.

The previous prime is 79486391. The next prime is 79486399. The reversal of 79486394 is 49368497.

It can be written as a sum of positive squares in 4 ways, for example, as 78411025 + 1075369 = 8855^2 + 1037^2 .

It is a super-2 number, since 2×79486394² = 12636173662246472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79486391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12509 + ... + 17760.

Almost surely, 2^79486394 is an apocalyptic number.

79486394 is a deficient number, since it is larger than the sum of its proper divisors (50190286).

79486394 is a wasteful number, since it uses less digits than its factorization.

79486394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30385.

The product of its digits is 1306368, while the sum is 50.

The square root of 79486394 is about 8915.5142308226. The cubic root of 79486394 is about 429.9628487824.

The spelling of 79486394 in words is "seventy-nine million, four hundred eighty-six thousand, three hundred ninety-four".