76808497 has 2 divisors, whose sum is σ = 76808498. Its totient is φ = 76808496.

The previous prime is 76808471. The next prime is 76808551. The reversal of 76808497 is 79480867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60357361 + 16451136 = 7769^2 + 4056^2 .

It is a cyclic number.

It is not a de Polignac number, because 76808497 - 2¹¹ = 76806449 is a prime.

It is a super-2 number, since 2×76808497² = 11799090422798018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76808497.

It is not a weakly prime, because it can be changed into another prime (76808437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38404248 + 38404249.

It is an arithmetic number, because the mean of its divisors is an integer number (38404249).

Almost surely, 2^76808497 is an apocalyptic number.

It is an amenable number.

76808497 is a deficient number, since it is larger than the sum of its proper divisors (1).

76808497 is an equidigital number, since it uses as much as digits as its factorization.

76808497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 76808497 is about 8764.0456981921. The cubic root of 76808497 is about 425.0791031537.

The spelling of 76808497 in words is "seventy-six million, eight hundred eight thousand, four hundred ninety-seven".