704239189 has 2 divisors, whose sum is σ = 704239190. Its totient is φ = 704239188.

The previous prime is 704239187. The next prime is 704239213. The reversal of 704239189 is 981932407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513384964 + 190854225 = 22658^2 + 13815^2 .

It is a cyclic number.

It is not a de Polignac number, because 704239189 - 2¹ = 704239187 is a prime.

Together with 704239187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704239187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352119594 + 352119595.

It is an arithmetic number, because the mean of its divisors is an integer number (352119595).

Almost surely, 2^704239189 is an apocalyptic number.

It is an amenable number.

704239189 is a deficient number, since it is larger than the sum of its proper divisors (1).

704239189 is an equidigital number, since it uses as much as digits as its factorization.

704239189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 704239189 is about 26537.5053273664. The cubic root of 704239189 is about 889.6927732240.

The spelling of 704239189 in words is "seven hundred four million, two hundred thirty-nine thousand, one hundred eighty-nine".