704866 has 8 divisors (see below), whose sum is σ = 1063260. Its totient is φ = 350448.

The previous prime is 704863. The next prime is 704867. The reversal of 704866 is 668407.

704866 = T₆₈₄ + T₆₈₅ + T₆₈₆.

It can be written as a sum of positive squares in 2 ways, for example, as 483025 + 221841 = 695^2 + 471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (704861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501 + ... + 1288.

2⁷⁰⁴⁸⁶⁶ is an apocalyptic number.

704866 is the 686-th centered triangular number.

704866 is a deficient number, since it is larger than the sum of its proper divisors (358394).

704866 is a wasteful number, since it uses less digits than its factorization.

704866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 704866 is about 839.5629815565. The cubic root of 704866 is about 88.9956653193.

The spelling of 704866 in words is "seven hundred four thousand, eight hundred sixty-six".