97678673 has 2 divisors, whose sum is σ = 97678674. Its totient is φ = 97678672.

The previous prime is 97678667. The next prime is 97678717. The reversal of 97678673 is 37687679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73393489 + 24285184 = 8567^2 + 4928^2 .

It is a cyclic number.

It is not a de Polignac number, because 97678673 - 2¹⁰ = 97677649 is a prime.

It is a super-2 number, since 2×97678673² = 19082246318081858, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (97678663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48839336 + 48839337.

It is an arithmetic number, because the mean of its divisors is an integer number (48839337).

Almost surely, 2^97678673 is an apocalyptic number.

It is an amenable number.

97678673 is a deficient number, since it is larger than the sum of its proper divisors (1).

97678673 is an equidigital number, since it uses as much as digits as its factorization.

97678673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 53.

The square root of 97678673 is about 9883.2521469403. The cubic root of 97678673 is about 460.5391803025.

The spelling of 97678673 in words is "ninety-seven million, six hundred seventy-eight thousand, six hundred seventy-three".