704888389 has 2 divisors, whose sum is σ = 704888390. Its totient is φ = 704888388.

The previous prime is 704888381. The next prime is 704888411. The reversal of 704888389 is 983888407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 694744164 + 10144225 = 26358^2 + 3185^2 .

It is an emirp because it is prime and its reverse (983888407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 704888389 - 2³ = 704888381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704888381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352444194 + 352444195.

It is an arithmetic number, because the mean of its divisors is an integer number (352444195).

Almost surely, 2^704888389 is an apocalyptic number.

It is an amenable number.

704888389 is a deficient number, since it is larger than the sum of its proper divisors (1).

704888389 is an equidigital number, since it uses as much as digits as its factorization.

704888389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 55.

The square root of 704888389 is about 26549.7342547906. The cubic root of 704888389 is about 889.9660758016.

The spelling of 704888389 in words is "seven hundred four million, eight hundred eighty-eight thousand, three hundred eighty-nine".