704371631 has 2 divisors, whose sum is σ = 704371632. Its totient is φ = 704371630.

The previous prime is 704371621. The next prime is 704371637. The reversal of 704371631 is 136173407.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 704371631 - 2⁶ = 704371567 is a prime.

It is a super-2 number, since 2×704371631² = 992278789115200322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704371637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352185815 + 352185816.

It is an arithmetic number, because the mean of its divisors is an integer number (352185816).

Almost surely, 2^704371631 is an apocalyptic number.

704371631 is a deficient number, since it is larger than the sum of its proper divisors (1).

704371631 is an equidigital number, since it uses as much as digits as its factorization.

704371631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 704371631 is about 26540.0005840241. Note that the first 3 decimals coincide. The cubic root of 704371631 is about 889.7485427723.

The spelling of 704371631 in words is "seven hundred four million, three hundred seventy-one thousand, six hundred thirty-one".