79992494 has 4 divisors (see below), whose sum is σ = 119988744. Its totient is φ = 39996246.

The previous prime is 79992491. The next prime is 79992503. The reversal of 79992494 is 49429997.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79992491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19998122 + ... + 19998125.

It is an arithmetic number, because the mean of its divisors is an integer number (29997186).

Almost surely, 2^79992494 is an apocalyptic number.

79992494 is a deficient number, since it is larger than the sum of its proper divisors (39996250).

79992494 is a wasteful number, since it uses less digits than its factorization.

79992494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39996249.

The product of its digits is 1469664, while the sum is 53.

The square root of 79992494 is about 8943.8523020005. The cubic root of 79992494 is about 430.8734615959.

The spelling of 79992494 in words is "seventy-nine million, nine hundred ninety-two thousand, four hundred ninety-four".