9997902773 has 2 divisors, whose sum is σ = 9997902774. Its totient is φ = 9997902772.

The previous prime is 9997902737. The next prime is 9997902797. The reversal of 9997902773 is 3772097999.

Together with previous prime (9997902737) 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., 7183918564 + 2813984209 = 84758^2 + 53047^2 .

It is a cyclic number.

It is not a de Polignac number, because 9997902773 - 2²² = 9993708469 is a prime.

It is a super-2 number, since 2×9997902773² (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 (9997902703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998951386 + 4998951387.

It is an arithmetic number, because the mean of its divisors is an integer number (4998951387).

Almost surely, 2^9997902773 is an apocalyptic number.

It is an amenable number.

9997902773 is a deficient number, since it is larger than the sum of its proper divisors (1).

9997902773 is an equidigital number, since it uses as much as digits as its factorization.

9997902773 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 9997902773 is about 99989.5133151472. The cubic root of 9997902773 is about 2154.2840682151.

The spelling of 9997902773 in words is "nine billion, nine hundred ninety-seven million, nine hundred two thousand, seven hundred seventy-three".