2397972737 has 2 divisors, whose sum is σ = 2397972738. Its totient is φ = 2397972736.

The previous prime is 2397972683. The next prime is 2397972739. The reversal of 2397972737 is 7372797932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1742561536 + 655411201 = 41744^2 + 25601^2 .

It is a cyclic number.

It is not a de Polignac number, because 2397972737 - 2¹² = 2397968641 is a prime.

Together with 2397972739, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2397972739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1198986368 + 1198986369.

It is an arithmetic number, because the mean of its divisors is an integer number (1198986369).

Almost surely, 2^2397972737 is an apocalyptic number.

It is an amenable number.

2397972737 is a deficient number, since it is larger than the sum of its proper divisors (1).

2397972737 is an equidigital number, since it uses as much as digits as its factorization.

2397972737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7001316, while the sum is 56.

The square root of 2397972737 is about 48969.0998181506. The cubic root of 2397972737 is about 1338.4888171239.

The spelling of 2397972737 in words is "two billion, three hundred ninety-seven million, nine hundred seventy-two thousand, seven hundred thirty-seven".