77508963 has 12 divisors (see below), whose sum is σ = 127951408. Its totient is φ = 44290800.

The previous prime is 77508953. The next prime is 77508997. The reversal of 77508963 is 36980577.

It is a happy number.

It is not a de Polignac number, because 77508963 - 2⁴ = 77508947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77508953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615088 + ... + 615213.

Almost surely, 2^77508963 is an apocalyptic number.

77508963 is a deficient number, since it is larger than the sum of its proper divisors (50442445).

77508963 is a wasteful number, since it uses less digits than its factorization.

77508963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230314 (or 1230311 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 77508963 is about 8803.9174803039. The cubic root of 77508963 is about 426.3673845888.

The spelling of 77508963 in words is "seventy-seven million, five hundred eight thousand, nine hundred sixty-three".