77616736 has 12 divisors (see below), whose sum is σ = 152808012. Its totient is φ = 38808352.

The previous prime is 77616733. The next prime is 77616779. The reversal of 77616736 is 63761677.

It is a junction number, because it is equal to n+sod(n) for n = 77616692 and 77616701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77616733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1212730 + ... + 1212793.

It is an arithmetic number, because the mean of its divisors is an integer number (12734001).

Almost surely, 2^77616736 is an apocalyptic number.

It is an amenable number.

77616736 is a deficient number, since it is larger than the sum of its proper divisors (75191276).

77616736 is a wasteful number, since it uses less digits than its factorization.

77616736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425533 (or 2425525 counting only the distinct ones).

The product of its digits is 222264, while the sum is 43.

The square root of 77616736 is about 8810.0360952723. The cubic root of 77616736 is about 426.5649084587.

The spelling of 77616736 in words is "seventy-seven million, six hundred sixteen thousand, seven hundred thirty-six".