7813600397 has 2 divisors, whose sum is σ = 7813600398. Its totient is φ = 7813600396.

The previous prime is 7813600351. The next prime is 7813600427. The reversal of 7813600397 is 7930063187.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7752978601 + 60621796 = 88051^2 + 7786^2 .

It is an emirp because it is prime and its reverse (7930063187) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7813600397 - 2²⁸ = 7545164941 is a prime.

It is a super-2 number, since 2×7813600397² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7813600897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3906800198 + 3906800199.

It is an arithmetic number, because the mean of its divisors is an integer number (3906800199).

Almost surely, 2^7813600397 is an apocalyptic number.

It is an amenable number.

7813600397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7813600397 is an equidigital number, since it uses as much as digits as its factorization.

7813600397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 7813600397 is about 88394.5722145879. The cubic root of 7813600397 is about 1984.3444717256.

The spelling of 7813600397 in words is "seven billion, eight hundred thirteen million, six hundred thousand, three hundred ninety-seven".