704402161 has 2 divisors, whose sum is σ = 704402162. Its totient is φ = 704402160.

The previous prime is 704402087. The next prime is 704402203. The reversal of 704402161 is 161204407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704106225 + 295936 = 26535^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 704402161 - 2²⁵ = 670847729 is a prime.

It is not a weakly prime, because it can be changed into another prime (704406161) 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, 352201080 + 352201081.

It is an arithmetic number, because the mean of its divisors is an integer number (352201081).

Almost surely, 2^704402161 is an apocalyptic number.

It is an amenable number.

704402161 is a deficient number, since it is larger than the sum of its proper divisors (1).

704402161 is an equidigital number, since it uses as much as digits as its factorization.

704402161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 704402161 is about 26540.5757473345. The cubic root of 704402161 is about 889.7613975540.

Adding to 704402161 its reverse (161204407), we get a palindrome (865606568).

The spelling of 704402161 in words is "seven hundred four million, four hundred two thousand, one hundred sixty-one".