79037993 has 4 divisors (see below), whose sum is σ = 80377680. Its totient is φ = 77698308.

The previous prime is 79037983. The next prime is 79038007. The reversal of 79037993 is 39973097.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79037993 - 2²⁶ = 11929129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79037923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669755 + ... + 669872.

It is an arithmetic number, because the mean of its divisors is an integer number (20094420).

Almost surely, 2^79037993 is an apocalyptic number.

It is an amenable number.

79037993 is a deficient number, since it is larger than the sum of its proper divisors (1339687).

79037993 is a wasteful number, since it uses less digits than its factorization.

79037993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339686.

The product of its (nonzero) digits is 321489, while the sum is 47.

The square root of 79037993 is about 8890.3314336418. The cubic root of 79037993 is about 429.1528172906.

It can be divided in two parts, 790 and 37993, that added together give a palindrome (38783).

The spelling of 79037993 in words is "seventy-nine million, thirty-seven thousand, nine hundred ninety-three".