764646213 has 8 divisors (see below), whose sum is σ = 1079500608. Its totient is φ = 479777984.

The previous prime is 764646209. The next prime is 764646251. The reversal of 764646213 is 312646467.

It is a happy number.

764646213 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 not a de Polignac number, because 764646213 - 2² = 764646209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764646413) 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, 7496481 + ... + 7496582.

It is an arithmetic number, because the mean of its divisors is an integer number (134937576).

Almost surely, 2^764646213 is an apocalyptic number.

It is an amenable number.

764646213 is a deficient number, since it is larger than the sum of its proper divisors (314854395).

764646213 is a wasteful number, since it uses less digits than its factorization.

764646213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14993083.

The product of its digits is 145152, while the sum is 39.

The square root of 764646213 is about 27652.2370342799. The cubic root of 764646213 is about 914.4364184461.

The spelling of 764646213 in words is "seven hundred sixty-four million, six hundred forty-six thousand, two hundred thirteen".