77661483 has 32 divisors (see below), whose sum is σ = 111234816. Its totient is φ = 48117888.

The previous prime is 77661473. The next prime is 77661487. The reversal of 77661483 is 38416677.

It is not a de Polignac number, because 77661483 - 2⁹ = 77660971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77661487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252816 + ... + 253122.

It is an arithmetic number, because the mean of its divisors is an integer number (3476088).

Almost surely, 2^77661483 is an apocalyptic number.

77661483 is a deficient number, since it is larger than the sum of its proper divisors (33573333).

77661483 is a wasteful number, since it uses less digits than its factorization.

77661483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443.

The product of its digits is 169344, while the sum is 42.

The square root of 77661483 is about 8812.5752762742. The cubic root of 77661483 is about 426.6468660109.

The spelling of 77661483 in words is "seventy-seven million, six hundred sixty-one thousand, four hundred eighty-three".