764120776 has 8 divisors (see below), whose sum is σ = 1432726470. Its totient is φ = 382060384.

The previous prime is 764120737. The next prime is 764120779. The reversal of 764120776 is 677021467.

764120776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 705964900 + 58155876 = 26570^2 + 7626^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (764120779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47757541 + ... + 47757556.

Almost surely, 2^764120776 is an apocalyptic number.

It is an amenable number.

764120776 is a deficient number, since it is larger than the sum of its proper divisors (668605694).

764120776 is a wasteful number, since it uses less digits than its factorization.

764120776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95515103 (or 95515099 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 764120776 is about 27642.7345969967. The cubic root of 764120776 is about 914.2269146616.

The spelling of 764120776 in words is "seven hundred sixty-four million, one hundred twenty thousand, seven hundred seventy-six".