76440797 has 2 divisors, whose sum is σ = 76440798. Its totient is φ = 76440796.

The previous prime is 76440757. The next prime is 76440803. The reversal of 76440797 is 79704467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53963716 + 22477081 = 7346^2 + 4741^2 .

It is a cyclic number.

It is not a de Polignac number, because 76440797 - 2⁶ = 76440733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76440737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38220398 + 38220399.

It is an arithmetic number, because the mean of its divisors is an integer number (38220399).

Almost surely, 2^76440797 is an apocalyptic number.

It is an amenable number.

76440797 is a deficient number, since it is larger than the sum of its proper divisors (1).

76440797 is an equidigital number, since it uses as much as digits as its factorization.

76440797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 76440797 is about 8743.0427769742. The cubic root of 76440797 is about 424.3997005917.

The spelling of 76440797 in words is "seventy-six million, four hundred forty thousand, seven hundred ninety-seven".