77743612 has 12 divisors (see below), whose sum is σ = 136216080. Its totient is φ = 38824736.

The previous prime is 77743607. The next prime is 77743619. The reversal of 77743612 is 21634777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77743619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7912 + ... + 14767.

It is an arithmetic number, because the mean of its divisors is an integer number (11351340).

Almost surely, 2^77743612 is an apocalyptic number.

It is an amenable number.

77743612 is a deficient number, since it is larger than the sum of its proper divisors (58472468).

77743612 is a wasteful number, since it uses less digits than its factorization.

77743612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23540 (or 23538 counting only the distinct ones).

The product of its digits is 49392, while the sum is 37.

The square root of 77743612 is about 8817.2338065858. The cubic root of 77743612 is about 426.7972096752.

The spelling of 77743612 in words is "seventy-seven million, seven hundred forty-three thousand, six hundred twelve".