77000766 has 16 divisors (see below), whose sum is σ = 154249488. Its totient is φ = 25625600.

The previous prime is 77000719. The next prime is 77000779. The reversal of 77000766 is 66700077.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6165 + ... + 13856.

It is an arithmetic number, because the mean of its divisors is an integer number (9640593).

Almost surely, 2^77000766 is an apocalyptic number.

77000766 is an abundant number, since it is smaller than the sum of its proper divisors (77248722).

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

77000766 is a wasteful number, since it uses less digits than its factorization.

77000766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20667.

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 77000766 is about 8775.0080341844. The cubic root of 77000766 is about 425.4334972470.

The spelling of 77000766 in words is "seventy-seven million, seven hundred sixty-six", and thus it is an aban number.