37312997 has 2 divisors, whose sum is σ = 37312998. Its totient is φ = 37312996.

The previous prime is 37312987. The next prime is 37312999. The reversal of 37312997 is 79921373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21520321 + 15792676 = 4639^2 + 3974^2 .

It is a cyclic number.

It is not a de Polignac number, because 37312997 - 2⁸ = 37312741 is a prime.

Together with 37312999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37312999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18656498 + 18656499.

It is an arithmetic number, because the mean of its divisors is an integer number (18656499).

Almost surely, 2^37312997 is an apocalyptic number.

It is an amenable number.

37312997 is a deficient number, since it is larger than the sum of its proper divisors (1).

37312997 is an equidigital number, since it uses as much as digits as its factorization.

37312997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442, while the sum is 41.

The square root of 37312997 is about 6108.4365430116. The cubic root of 37312997 is about 334.1591655361.

The spelling of 37312997 in words is "thirty-seven million, three hundred twelve thousand, nine hundred ninety-seven".