764700193 has 8 divisors (see below), whose sum is σ = 776069640. Its totient is φ = 753392640.

The previous prime is 764700191. The next prime is 764700197. The reversal of 764700193 is 391007467.

It can be written as a sum of positive squares in 4 ways, for example, as 43401744 + 721298449 = 6588^2 + 26857^2 .

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 764700193 - 2¹ = 764700191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764700191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9721 + ... + 40297.

It is an arithmetic number, because the mean of its divisors is an integer number (97008705).

Almost surely, 2^764700193 is an apocalyptic number.

It is an amenable number.

764700193 is a deficient number, since it is larger than the sum of its proper divisors (11369447).

764700193 is a wasteful number, since it uses less digits than its factorization.

764700193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30947.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 764700193 is about 27653.2130682856. The cubic root of 764700193 is about 914.4579360733.

The spelling of 764700193 in words is "seven hundred sixty-four million, seven hundred thousand, one hundred ninety-three".