764987077 has 8 divisors (see below), whose sum is σ = 773188416. Its totient is φ = 756800832.

The previous prime is 764987059. The next prime is 764987081. The reversal of 764987077 is 770789467.

764987077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-764987077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764985077) 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, 119133 + ... + 125389.

It is an arithmetic number, because the mean of its divisors is an integer number (96648552).

Almost surely, 2^764987077 is an apocalyptic number.

It is an amenable number.

764987077 is a deficient number, since it is larger than the sum of its proper divisors (8201339).

764987077 is a wasteful number, since it uses less digits than its factorization.

764987077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7547.

The product of its (nonzero) digits is 4148928, while the sum is 55.

The square root of 764987077 is about 27658.3997548665. The cubic root of 764987077 is about 914.5722774204.

The spelling of 764987077 in words is "seven hundred sixty-four million, nine hundred eighty-seven thousand, seventy-seven".