705406406 has 16 divisors (see below), whose sum is σ = 1087479744. Its totient is φ = 342926784.

The previous prime is 705406397. The next prime is 705406417. The reversal of 705406406 is 604604507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145091 + ... + 149873.

It is an arithmetic number, because the mean of its divisors is an integer number (67967484).

Almost surely, 2^705406406 is an apocalyptic number.

705406406 is a deficient number, since it is larger than the sum of its proper divisors (382073338).

705406406 is a wasteful number, since it uses less digits than its factorization.

705406406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6815.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 705406406 is about 26559.4880598252. The cubic root of 705406406 is about 890.1840321368.

The spelling of 705406406 in words is "seven hundred five million, four hundred six thousand, four hundred six".