77130586 has 12 divisors (see below), whose sum is σ = 125280702. Its totient is φ = 35598576.

The previous prime is 77130577. The next prime is 77130587. The reversal of 77130586 is 68503177.

It can be written as a sum of positive squares in 3 ways, for example, as 34633225 + 42497361 = 5885^2 + 6519^2 .

It is not an unprimeable number, because it can be changed into a prime (77130587) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113761 + ... + 114436.

Almost surely, 2^77130586 is an apocalyptic number.

77130586 is a deficient number, since it is larger than the sum of its proper divisors (48150116).

77130586 is a wasteful number, since it uses less digits than its factorization.

77130586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228225 (or 228212 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 77130586 is about 8782.4020632171. The cubic root of 77130586 is about 425.6724505725.

The spelling of 77130586 in words is "seventy-seven million, one hundred thirty thousand, five hundred eighty-six".