972693737 has 2 divisors, whose sum is σ = 972693738. Its totient is φ = 972693736.

The previous prime is 972693719. The next prime is 972693763. The reversal of 972693737 is 737396279.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749609641 + 223084096 = 27379^2 + 14936^2 .

It is an emirp because it is prime and its reverse (737396279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 972693737 - 2¹⁴ = 972677353 is a prime.

It is a super-2 number, since 2×972693737² = 1892266211998050338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (972693637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486346868 + 486346869.

It is an arithmetic number, because the mean of its divisors is an integer number (486346869).

Almost surely, 2^972693737 is an apocalyptic number.

It is an amenable number.

972693737 is a deficient number, since it is larger than the sum of its proper divisors (1).

972693737 is an equidigital number, since it uses as much as digits as its factorization.

972693737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000564, while the sum is 53.

The square root of 972693737 is about 31188.0383640908. The cubic root of 972693737 is about 990.8137841698.

The spelling of 972693737 in words is "nine hundred seventy-two million, six hundred ninety-three thousand, seven hundred thirty-seven".