704691881 has 2 divisors, whose sum is σ = 704691882. Its totient is φ = 704691880.

The previous prime is 704691877. The next prime is 704691941. The reversal of 704691881 is 188196407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651270400 + 53421481 = 25520^2 + 7309^2 .

It is a cyclic number.

It is not a de Polignac number, because 704691881 - 2² = 704691877 is a prime.

It is a super-2 number, since 2×704691881² = 993181294294636322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (704691781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352345940 + 352345941.

It is an arithmetic number, because the mean of its divisors is an integer number (352345941).

Almost surely, 2^704691881 is an apocalyptic number.

It is an amenable number.

704691881 is a deficient number, since it is larger than the sum of its proper divisors (1).

704691881 is an equidigital number, since it uses as much as digits as its factorization.

704691881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 704691881 is about 26546.0332441591. The cubic root of 704691881 is about 889.8833668648.

The spelling of 704691881 in words is "seven hundred four million, six hundred ninety-one thousand, eight hundred eighty-one".