764657041 has 2 divisors, whose sum is σ = 764657042. Its totient is φ = 764657040.

The previous prime is 764656999. The next prime is 764657099. The reversal of 764657041 is 140756467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403809025 + 360848016 = 20095^2 + 18996^2 .

It is a cyclic number.

It is not a de Polignac number, because 764657041 - 2⁷ = 764656913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 764656985 and 764657003.

It is not a weakly prime, because it can be changed into another prime (764657141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382328520 + 382328521.

It is an arithmetic number, because the mean of its divisors is an integer number (382328521).

Almost surely, 2^764657041 is an apocalyptic number.

It is an amenable number.

764657041 is a deficient number, since it is larger than the sum of its proper divisors (1).

764657041 is an equidigital number, since it uses as much as digits as its factorization.

764657041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 764657041 is about 27652.4328224480. The cubic root of 764657041 is about 914.4407348087.

The spelling of 764657041 in words is "seven hundred sixty-four million, six hundred fifty-seven thousand, forty-one".