764120634 has 8 divisors (see below), whose sum is σ = 1528241280. Its totient is φ = 254706876.

The previous prime is 764120597. The next prime is 764120639. The reversal of 764120634 is 436021467.

It is a happy number.

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

764120634 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 764120595 and 764120604.

It is not an unprimeable number, because it can be changed into a prime (764120639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63676714 + ... + 63676725.

It is an arithmetic number, because the mean of its divisors is an integer number (191030160).

Almost surely, 2^764120634 is an apocalyptic number.

764120634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

764120634 is a wasteful number, since it uses less digits than its factorization.

764120634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127353444.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 764120634 is about 27642.7320285098. The cubic root of 764120634 is about 914.2268580300.

The spelling of 764120634 in words is "seven hundred sixty-four million, one hundred twenty thousand, six hundred thirty-four".