79140793 has 4 divisors (see below), whose sum is σ = 79841268. Its totient is φ = 78440320.

The previous prime is 79140791. The next prime is 79140811. The reversal of 79140793 is 39704197.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39538944 + 39601849 = 6288^2 + 6293^2 .

It is a cyclic number.

It is not a de Polignac number, because 79140793 - 2¹ = 79140791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79140791) 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 3 ways as a sum of consecutive naturals, for example, 350068 + ... + 350293.

It is an arithmetic number, because the mean of its divisors is an integer number (19960317).

Almost surely, 2^79140793 is an apocalyptic number.

It is an amenable number.

79140793 is a deficient number, since it is larger than the sum of its proper divisors (700475).

79140793 is a wasteful number, since it uses less digits than its factorization.

79140793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700474.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 79140793 is about 8896.1111166622. Note that the first 5 decimals coincide. The cubic root of 79140793 is about 429.3387945024.

The spelling of 79140793 in words is "seventy-nine million, one hundred forty thousand, seven hundred ninety-three".