704861 has 2 divisors, whose sum is σ = 704862. Its totient is φ = 704860.

The previous prime is 704857. The next prime is 704863. The reversal of 704861 is 168407.

704861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 649636 + 55225 = 806^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 704861 - 2² = 704857 is a prime.

Together with 704863, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 704861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352430 + 352431.

It is an arithmetic number, because the mean of its divisors is an integer number (352431).

2⁷⁰⁴⁸⁶¹ is an apocalyptic number.

It is an amenable number.

704861 is a deficient number, since it is larger than the sum of its proper divisors (1).

704861 is an equidigital number, since it uses as much as digits as its factorization.

704861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 704861 is about 839.5600038115. The cubic root of 704861 is about 88.9954548872.

The spelling of 704861 in words is "seven hundred four thousand, eight hundred sixty-one".