9976000637 has 2 divisors, whose sum is σ = 9976000638. Its totient is φ = 9976000636.

The previous prime is 9976000591. The next prime is 9976000669. The reversal of 9976000637 is 7360006799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7944335161 + 2031665476 = 89131^2 + 45074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9976000637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9976000591 and 9976000600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9976000037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988000318 + 4988000319.

It is an arithmetic number, because the mean of its divisors is an integer number (4988000319).

Almost surely, 2^9976000637 is an apocalyptic number.

It is an amenable number.

9976000637 is a deficient number, since it is larger than the sum of its proper divisors (1).

9976000637 is an equidigital number, since it uses as much as digits as its factorization.

9976000637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 9976000637 is about 99879.9311022990. The cubic root of 9976000637 is about 2152.7098074194.

The spelling of 9976000637 in words is "nine billion, nine hundred seventy-six million, six hundred thirty-seven", and thus it is an aban number.