76718497 has 4 divisors (see below), whose sum is σ = 76852036. Its totient is φ = 76584960.

The previous prime is 76718483. The next prime is 76718513. The reversal of 76718497 is 79481767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79481767 = 23 ⋅3455729.

It can be written as a sum of positive squares in 2 ways, for example, as 62346816 + 14371681 = 7896^2 + 3791^2 .

It is a cyclic number.

It is not a de Polignac number, because 76718497 - 2¹¹ = 76716449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76718497.

It is not an unprimeable number, because it can be changed into a prime (76718437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65904 + ... + 67057.

It is an arithmetic number, because the mean of its divisors is an integer number (19213009).

Almost surely, 2^76718497 is an apocalyptic number.

It is an amenable number.

76718497 is a deficient number, since it is larger than the sum of its proper divisors (133539).

76718497 is a wasteful number, since it uses less digits than its factorization.

76718497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133538.

The product of its digits is 592704, while the sum is 49.

The square root of 76718497 is about 8758.9095782523. The cubic root of 76718497 is about 424.9130101083.

The spelling of 76718497 in words is "seventy-six million, seven hundred eighteen thousand, four hundred ninety-seven".