79311243 has 8 divisors (see below), whose sum is σ = 115361856. Its totient is φ = 48067400.

The previous prime is 79311217. The next prime is 79311247. The reversal of 79311243 is 34211397.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79311243 - 2¹² = 79307147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79311243.

It is not an unprimeable number, because it can be changed into a prime (79311247) 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 in 7 ways as a sum of consecutive naturals, for example, 1201653 + ... + 1201718.

It is an arithmetic number, because the mean of its divisors is an integer number (14420232).

Almost surely, 2^79311243 is an apocalyptic number.

79311243 is a deficient number, since it is larger than the sum of its proper divisors (36050613).

79311243 is a wasteful number, since it uses less digits than its factorization.

79311243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403385.

The product of its digits is 4536, while the sum is 30.

The square root of 79311243 is about 8905.6859926678. The cubic root of 79311243 is about 429.6468038936.

The spelling of 79311243 in words is "seventy-nine million, three hundred eleven thousand, two hundred forty-three".