764229493 has 4 divisors (see below), whose sum is σ = 769358700. Its totient is φ = 759100288.

The previous prime is 764229491. The next prime is 764229523. The reversal of 764229493 is 394922467.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 338302449 + 425927044 = 18393^2 + 20638^2 .

It is a cyclic number.

It is not a de Polignac number, because 764229493 - 2¹ = 764229491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764229491) 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, 2564380 + ... + 2564677.

It is an arithmetic number, because the mean of its divisors is an integer number (192339675).

Almost surely, 2^764229493 is an apocalyptic number.

It is an amenable number.

764229493 is a deficient number, since it is larger than the sum of its proper divisors (5129207).

764229493 is a wasteful number, since it uses less digits than its factorization.

764229493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129206.

The product of its digits is 653184, while the sum is 46.

The square root of 764229493 is about 27644.7009931379. The cubic root of 764229493 is about 914.2702705015.

The spelling of 764229493 in words is "seven hundred sixty-four million, two hundred twenty-nine thousand, four hundred ninety-three".