764341493 has 2 divisors, whose sum is σ = 764341494. Its totient is φ = 764341492.

The previous prime is 764341447. The next prime is 764341531. The reversal of 764341493 is 394143467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 754216369 + 10125124 = 27463^2 + 3182^2 .

It is a cyclic number.

It is not a de Polignac number, because 764341493 - 2²⁰ = 763292917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 764341493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764341433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382170746 + 382170747.

It is an arithmetic number, because the mean of its divisors is an integer number (382170747).

Almost surely, 2^764341493 is an apocalyptic number.

It is an amenable number.

764341493 is a deficient number, since it is larger than the sum of its proper divisors (1).

764341493 is an equidigital number, since it uses as much as digits as its factorization.

764341493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 41.

The square root of 764341493 is about 27646.7266235987. The cubic root of 764341493 is about 914.3149312871.

The spelling of 764341493 in words is "seven hundred sixty-four million, three hundred forty-one thousand, four hundred ninety-three".