973686937 has 2 divisors, whose sum is σ = 973686938. Its totient is φ = 973686936.

The previous prime is 973686893. The next prime is 973686943. The reversal of 973686937 is 739686379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 518973961 + 454712976 = 22781^2 + 21324^2 .

It is an emirp because it is prime and its reverse (739686379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 973686937 - 2⁷ = 973686809 is a prime.

It is not a weakly prime, because it can be changed into another prime (973686137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486843468 + 486843469.

It is an arithmetic number, because the mean of its divisors is an integer number (486843469).

Almost surely, 2^973686937 is an apocalyptic number.

It is an amenable number.

973686937 is a deficient number, since it is larger than the sum of its proper divisors (1).

973686937 is an equidigital number, since it uses as much as digits as its factorization.

973686937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 58.

The square root of 973686937 is about 31203.9570727817. The cubic root of 973686937 is about 991.1509034712.

The spelling of 973686937 in words is "nine hundred seventy-three million, six hundred eighty-six thousand, nine hundred thirty-seven".