7312979 has 2 divisors, whose sum is σ = 7312980. Its totient is φ = 7312978.

The previous prime is 7312969. The next prime is 7312997. The reversal of 7312979 is 9792137.

Together with next prime (7312997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (9792137) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7312979 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7312909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3656489 + 3656490.

It is an arithmetic number, because the mean of its divisors is an integer number (3656490).

Almost surely, 2^7312979 is an apocalyptic number.

7312979 is a deficient number, since it is larger than the sum of its proper divisors (1).

7312979 is an equidigital number, since it uses as much as digits as its factorization.

7312979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 38.

The square root of 7312979 is about 2704.2520222790. The cubic root of 7312979 is about 194.1026399155.

The spelling of 7312979 in words is "seven million, three hundred twelve thousand, nine hundred seventy-nine".