704955649 has 2 divisors, whose sum is σ = 704955650. Its totient is φ = 704955648.

The previous prime is 704955583. The next prime is 704955653. The reversal of 704955649 is 946559407.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652291600 + 52664049 = 25540^2 + 7257^2 .

It is a cyclic number.

It is not a de Polignac number, because 704955649 - 2¹⁷ = 704824577 is a prime.

It is a super-2 number, since 2×704955649² = 993924934114022402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (704955149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352477824 + 352477825.

It is an arithmetic number, because the mean of its divisors is an integer number (352477825).

Almost surely, 2^704955649 is an apocalyptic number.

It is an amenable number.

704955649 is a deficient number, since it is larger than the sum of its proper divisors (1).

704955649 is an equidigital number, since it uses as much as digits as its factorization.

704955649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 704955649 is about 26551.0009039207. Note that the first 3 decimals coincide. The cubic root of 704955649 is about 889.9943815662.

The spelling of 704955649 in words is "seven hundred four million, nine hundred fifty-five thousand, six hundred forty-nine".