764421674 has 8 divisors (see below), whose sum is σ = 1146864420. Its totient is φ = 382133536.

The previous prime is 764421659. The next prime is 764421719. The reversal of 764421674 is 476124467.

It can be written as a sum of positive squares in 2 ways, for example, as 764135449 + 286225 = 27643^2 + 535^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25379 + ... + 46614.

Almost surely, 2^764421674 is an apocalyptic number.

764421674 is a deficient number, since it is larger than the sum of its proper divisors (382442746).

764421674 is a wasteful number, since it uses less digits than its factorization.

764421674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77304.

The product of its digits is 225792, while the sum is 41.

The square root of 764421674 is about 27648.1766849100. The cubic root of 764421674 is about 914.3469013436.

The spelling of 764421674 in words is "seven hundred sixty-four million, four hundred twenty-one thousand, six hundred seventy-four".