9976655537 has 2 divisors, whose sum is σ = 9976655538. Its totient is φ = 9976655536.

The previous prime is 9976655483. The next prime is 9976655573. The reversal of 9976655537 is 7355566799.

Together with next prime (9976655573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6902951056 + 3073704481 = 83084^2 + 55441^2 .

It is a cyclic number.

It is not a de Polignac number, because 9976655537 - 2⁶ = 9976655473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9976655537.

It is not a weakly prime, because it can be changed into another prime (9976655597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988327768 + 4988327769.

It is an arithmetic number, because the mean of its divisors is an integer number (4988327769).

Almost surely, 2^9976655537 is an apocalyptic number.

It is an amenable number.

9976655537 is a deficient number, since it is larger than the sum of its proper divisors (1).

9976655537 is an equidigital number, since it uses as much as digits as its factorization.

9976655537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53581500, while the sum is 62.

The square root of 9976655537 is about 99883.2094848779. The cubic root of 9976655537 is about 2152.7569130968.

The spelling of 9976655537 in words is "nine billion, nine hundred seventy-six million, six hundred fifty-five thousand, five hundred thirty-seven".