77716366 has 16 divisors (see below), whose sum is σ = 143476704. Its totient is φ = 30744864.

The previous prime is 77716363. The next prime is 77716381. The reversal of 77716366 is 66361777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77716363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213325 + ... + 213688.

It is an arithmetic number, because the mean of its divisors is an integer number (8967294).

Almost surely, 2^77716366 is an apocalyptic number.

77716366 is a deficient number, since it is larger than the sum of its proper divisors (65760338).

77716366 is a wasteful number, since it uses less digits than its factorization.

77716366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427035.

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

The square root of 77716366 is about 8815.6886288026. The cubic root of 77716366 is about 426.7473454476.

The spelling of 77716366 in words is "seventy-seven million, seven hundred sixteen thousand, three hundred sixty-six".