76397897 has 2 divisors, whose sum is σ = 76397898. Its totient is φ = 76397896.

The previous prime is 76397887. The next prime is 76397903. The reversal of 76397897 is 79879367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40589641 + 35808256 = 6371^2 + 5984^2 .

It is a cyclic number.

It is not a de Polignac number, because 76397897 - 2⁸ = 76397641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76397807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38198948 + 38198949.

It is an arithmetic number, because the mean of its divisors is an integer number (38198949).

Almost surely, 2^76397897 is an apocalyptic number.

It is an amenable number.

76397897 is a deficient number, since it is larger than the sum of its proper divisors (1).

76397897 is an equidigital number, since it uses as much as digits as its factorization.

76397897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000752, while the sum is 56.

The square root of 76397897 is about 8740.5890533762. The cubic root of 76397897 is about 424.3202920606.

The spelling of 76397897 in words is "seventy-six million, three hundred ninety-seven thousand, eight hundred ninety-seven".