705631672 has 32 divisors (see below), whose sum is σ = 1386155520. Its totient is φ = 336330720.

The previous prime is 705631649. The next prime is 705631673. The reversal of 705631672 is 276136507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705631673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4618 + ... + 37849.

It is an arithmetic number, because the mean of its divisors is an integer number (43317360).

Almost surely, 2^705631672 is an apocalyptic number.

It is an amenable number.

705631672 is a deficient number, since it is larger than the sum of its proper divisors (680523848).

705631672 is a wasteful number, since it uses less digits than its factorization.

705631672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42571 (or 42567 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 705631672 is about 26563.7285033558. The cubic root of 705631672 is about 890.2787798135.

The spelling of 705631672 in words is "seven hundred five million, six hundred thirty-one thousand, six hundred seventy-two".