7447313 has 2 divisors, whose sum is σ = 7447314. Its totient is φ = 7447312.

The previous prime is 7447303. The next prime is 7447333. The reversal of 7447313 is 3137447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7441984 + 5329 = 2728^2 + 73^2 .

It is an emirp because it is prime and its reverse (3137447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7447313 - 2⁸ = 7447057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7447303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3723656 + 3723657.

It is an arithmetic number, because the mean of its divisors is an integer number (3723657).

Almost surely, 2^7447313 is an apocalyptic number.

It is an amenable number.

7447313 is a deficient number, since it is larger than the sum of its proper divisors (1).

7447313 is an equidigital number, since it uses as much as digits as its factorization.

7447313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 29.

The square root of 7447313 is about 2728.9765480854. The cubic root of 7447313 is about 195.2839431273.

The spelling of 7447313 in words is "seven million, four hundred forty-seven thousand, three hundred thirteen".