77612 has 6 divisors (see below), whose sum is σ = 135828. Its totient is φ = 38804.

The previous prime is 77611. The next prime is 77617. The reversal of 77612 is 21677.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9698 + ... + 9705.

It is an arithmetic number, because the mean of its divisors is an integer number (22638).

2⁷⁷⁶¹² is an apocalyptic number.

It is an amenable number.

77612 is a deficient number, since it is larger than the sum of its proper divisors (58216).

77612 is a wasteful number, since it uses less digits than its factorization.

77612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19407 (or 19405 counting only the distinct ones).

The product of its digits is 588, while the sum is 23.

The square root of 77612 is about 278.5893034558. The cubic root of 77612 is about 42.6556232269.

The spelling of 77612 in words is "seventy-seven thousand, six hundred twelve".