9997902737 has 2 divisors, whose sum is σ = 9997902738. Its totient is φ = 9997902736.

The previous prime is 9997902703. The next prime is 9997902773. The reversal of 9997902737 is 7372097999.

Together with next prime (9997902773) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7505796496 + 2492106241 = 86636^2 + 49921^2 .

It is a cyclic number.

It is not a de Polignac number, because 9997902737 - 2¹⁸ = 9997640593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9997902737.

It is not a weakly prime, because it can be changed into another prime (9997902797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998951368 + 4998951369.

It is an arithmetic number, because the mean of its divisors is an integer number (4998951369).

Almost surely, 2^9997902737 is an apocalyptic number.

It is an amenable number.

9997902737 is a deficient number, since it is larger than the sum of its proper divisors (1).

9997902737 is an equidigital number, since it uses as much as digits as its factorization.

9997902737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13502538, while the sum is 62.

The square root of 9997902737 is about 99989.5131351283. The cubic root of 9997902737 is about 2154.2840656294.

The spelling of 9997902737 in words is "nine billion, nine hundred ninety-seven million, nine hundred two thousand, seven hundred thirty-seven".