77130610 has 16 divisors (see below), whose sum is σ = 139052376. Its totient is φ = 30803968.

The previous prime is 77130593. The next prime is 77130611. The reversal of 77130610 is 1603177.

It can be written as a sum of positive squares in 4 ways, for example, as 77105961 + 24649 = 8781^2 + 157^2 .

It is not an unprimeable number, because it can be changed into a prime (77130611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074 + ... + 12466.

Almost surely, 2^77130610 is an apocalyptic number.

77130610 is a deficient number, since it is larger than the sum of its proper divisors (61921766).

77130610 is a wasteful number, since it uses less digits than its factorization.

77130610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12077.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 77130610 is about 8782.4034295858. The cubic root of 77130610 is about 425.6724947233.

Adding to 77130610 its reverse (1603177), we get a palindrome (78733787).

The spelling of 77130610 in words is "seventy-seven million, one hundred thirty thousand, six hundred ten".