77606312 has 16 divisors (see below), whose sum is σ = 166299360. Its totient is φ = 33259824.

The previous prime is 77606297. The next prime is 77606329. The reversal of 77606312 is 21360677.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692858 + ... + 692969.

It is an arithmetic number, because the mean of its divisors is an integer number (10393710).

Almost surely, 2^77606312 is an apocalyptic number.

It is an amenable number.

77606312 is an abundant number, since it is smaller than the sum of its proper divisors (88693048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77606312 is a wasteful number, since it uses less digits than its factorization.

77606312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385840 (or 1385836 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 77606312 is about 8809.4444773777. Note that the first 4 decimals coincide. The cubic root of 77606312 is about 426.5458115822.

Adding to 77606312 its reverse (21360677), we get a palindrome (98966989).

The spelling of 77606312 in words is "seventy-seven million, six hundred six thousand, three hundred twelve".