764666612 has 6 divisors (see below), whose sum is σ = 1338166578. Its totient is φ = 382333304.

The previous prime is 764666603. The next prime is 764666627. The reversal of 764666612 is 216666467.

It can be written as a sum of positive squares in only one way, i.e., 641811556 + 122855056 = 25334^2 + 11084^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95583323 + ... + 95583330.

It is an arithmetic number, because the mean of its divisors is an integer number (223027763).

Almost surely, 2^764666612 is an apocalyptic number.

It is an amenable number.

764666612 is a deficient number, since it is larger than the sum of its proper divisors (573499966).

764666612 is a wasteful number, since it uses less digits than its factorization.

764666612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191166657 (or 191166655 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 764666612 is about 27652.6058808207. The cubic root of 764666612 is about 914.4445500597. Note that the first 3 decimals are identical.

The spelling of 764666612 in words is "seven hundred sixty-four million, six hundred sixty-six thousand, six hundred twelve".