7315630397 has 2 divisors, whose sum is σ = 7315630398. Its totient is φ = 7315630396.

The previous prime is 7315630331. The next prime is 7315630409. The reversal of 7315630397 is 7930365137.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4253778841 + 3061851556 = 65221^2 + 55334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7315630397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7315630327) 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 as a sum of consecutive naturals, namely, 3657815198 + 3657815199.

It is an arithmetic number, because the mean of its divisors is an integer number (3657815199).

Almost surely, 2^7315630397 is an apocalyptic number.

It is an amenable number.

7315630397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7315630397 is an equidigital number, since it uses as much as digits as its factorization.

7315630397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 44.

The square root of 7315630397 is about 85531.4585225810. The cubic root of 7315630397 is about 1941.2609506161.

The spelling of 7315630397 in words is "seven billion, three hundred fifteen million, six hundred thirty thousand, three hundred ninety-seven".