704686406 has 8 divisors (see below), whose sum is σ = 1062039864. Its totient is φ = 350673120.

The previous prime is 704686403. The next prime is 704686427. The reversal of 704686406 is 604686407.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704686403) 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, 834515 + ... + 835358.

It is an arithmetic number, because the mean of its divisors is an integer number (132754983).

Almost surely, 2^704686406 is an apocalyptic number.

704686406 is a deficient number, since it is larger than the sum of its proper divisors (357353458).

704686406 is a wasteful number, since it uses less digits than its factorization.

704686406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670086.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 704686406 is about 26545.9301212069. The cubic root of 704686406 is about 889.8810622528.

Subtracting from 704686406 its reverse (604686407), we obtain a palindrome (99999999).

The spelling of 704686406 in words is "seven hundred four million, six hundred eighty-six thousand, four hundred six".