77606712 has 48 divisors (see below), whose sum is σ = 213759000. Its totient is φ = 25429056.

The previous prime is 77606707. The next prime is 77606747. The reversal of 77606712 is 21760677.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4887 + ... + 13382.

Almost surely, 2^77606712 is an apocalyptic number.

77606712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

77606712 is an abundant number, since it is smaller than the sum of its proper divisors (136152288).

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

77606712 is a wasteful number, since it uses less digits than its factorization.

77606712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18340 (or 18333 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 77606712 is about 8809.4671802556. The cubic root of 77606712 is about 426.5465444179.

The spelling of 77606712 in words is "seventy-seven million, six hundred six thousand, seven hundred twelve".