704166685 has 4 divisors (see below), whose sum is σ = 845000028. Its totient is φ = 563333344.

The previous prime is 704166629. The next prime is 704166691. The reversal of 704166685 is 586661407.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 228795876 + 475370809 = 15126^2 + 21803^2 .

It is a cyclic number.

It is not a de Polignac number, because 704166685 - 2⁷ = 704166557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70416664 + ... + 70416673.

It is an arithmetic number, because the mean of its divisors is an integer number (211250007).

Almost surely, 2^704166685 is an apocalyptic number.

It is an amenable number.

704166685 is a deficient number, since it is larger than the sum of its proper divisors (140833343).

704166685 is a wasteful number, since it uses less digits than its factorization.

704166685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140833342.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 704166685 is about 26536.1392255920. The cubic root of 704166685 is about 889.6622398013.

The spelling of 704166685 in words is "seven hundred four million, one hundred sixty-six thousand, six hundred eighty-five".