7993690631 has 2 divisors, whose sum is σ = 7993690632. Its totient is φ = 7993690630.

The previous prime is 7993690591. The next prime is 7993690633. The reversal of 7993690631 is 1360963997.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7993690631 - 2²² = 7989496327 is a prime.

It is a super-2 number, since 2×7993690631² (a number of 21 digits) contains 22 as substring.

Together with 7993690633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7993690633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3996845315 + 3996845316.

It is an arithmetic number, because the mean of its divisors is an integer number (3996845316).

Almost surely, 2^7993690631 is an apocalyptic number.

7993690631 is a deficient number, since it is larger than the sum of its proper divisors (1).

7993690631 is an equidigital number, since it uses as much as digits as its factorization.

7993690631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1653372, while the sum is 53.

The square root of 7993690631 is about 89407.4416981048. The cubic root of 7993690631 is about 1999.4740809667.

The spelling of 7993690631 in words is "seven billion, nine hundred ninety-three million, six hundred ninety thousand, six hundred thirty-one".