764249 has 2 divisors, whose sum is σ = 764250. Its totient is φ = 764248.

The previous prime is 764233. The next prime is 764251. The reversal of 764249 is 942467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 739600 + 24649 = 860^2 + 157^2 .

It is a cyclic number.

It is not a de Polignac number, because 764249 - 2⁴ = 764233 is a prime.

Together with 764251, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (764209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382124 + 382125.

It is an arithmetic number, because the mean of its divisors is an integer number (382125).

2⁷⁶⁴²⁴⁹ is an apocalyptic number.

It is an amenable number.

764249 is a deficient number, since it is larger than the sum of its proper divisors (1).

764249 is an equidigital number, since it uses as much as digits as its factorization.

764249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 764249 is about 874.2133606849. The cubic root of 764249 is about 91.4278049368.

The spelling of 764249 in words is "seven hundred sixty-four thousand, two hundred forty-nine".