76997597 has 2 divisors, whose sum is σ = 76997598. Its totient is φ = 76997596.

The previous prime is 76997593. The next prime is 76997611. The reversal of 76997597 is 79579967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59197636 + 17799961 = 7694^2 + 4219^2 .

It is a cyclic number.

It is not a de Polignac number, because 76997597 - 2² = 76997593 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76997593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38498798 + 38498799.

It is an arithmetic number, because the mean of its divisors is an integer number (38498799).

Almost surely, 2^76997597 is an apocalyptic number.

It is an amenable number.

76997597 is a deficient number, since it is larger than the sum of its proper divisors (1).

76997597 is an equidigital number, since it uses as much as digits as its factorization.

76997597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7501410, while the sum is 59.

The square root of 76997597 is about 8774.8274626912. The cubic root of 76997597 is about 425.4276608667.

The spelling of 76997597 in words is "seventy-six million, nine hundred ninety-seven thousand, five hundred ninety-seven".