764061393 has 4 divisors (see below), whose sum is σ = 1018748528. Its totient is φ = 509374260.

The previous prime is 764061391. The next prime is 764061401. The reversal of 764061393 is 393160467.

764061393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 764061393 - 2¹ = 764061391 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (764061391) 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, 127343563 + ... + 127343568.

It is an arithmetic number, because the mean of its divisors is an integer number (254687132).

Almost surely, 2^764061393 is an apocalyptic number.

It is an amenable number.

764061393 is a deficient number, since it is larger than the sum of its proper divisors (254687135).

764061393 is a wasteful number, since it uses less digits than its factorization.

764061393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254687134.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 764061393 is about 27641.6604602546. The cubic root of 764061393 is about 914.2032312576.

The spelling of 764061393 in words is "seven hundred sixty-four million, sixty-one thousand, three hundred ninety-three".