702664649 has 2 divisors, whose sum is σ = 702664650. Its totient is φ = 702664648.

The previous prime is 702664609. The next prime is 702664657. The reversal of 702664649 is 946466207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497602249 + 205062400 = 22307^2 + 14320^2 .

It is an emirp because it is prime and its reverse (946466207) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-702664649 is a prime.

It is not a weakly prime, because it can be changed into another prime (702664609) 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, 351332324 + 351332325.

It is an arithmetic number, because the mean of its divisors is an integer number (351332325).

Almost surely, 2^702664649 is an apocalyptic number.

It is an amenable number.

702664649 is a deficient number, since it is larger than the sum of its proper divisors (1).

702664649 is an equidigital number, since it uses as much as digits as its factorization.

702664649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 702664649 is about 26507.8224115071. The cubic root of 702664649 is about 889.0292192341.

The spelling of 702664649 in words is "seven hundred two million, six hundred sixty-four thousand, six hundred forty-nine".