3197223656 has 24 divisors (see below), whose sum is σ = 6589321410. Its totient is φ = 1453283040.

The previous prime is 3197223637. The next prime is 3197223691. The reversal of 3197223656 is 6563227913.

3197223656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1793522500 + 1403701156 = 42350^2 + 37466^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1650491 + ... + 1652426.

Almost surely, 2^3197223656 is an apocalyptic number.

It is an amenable number.

3197223656 is an abundant number, since it is smaller than the sum of its proper divisors (3392097754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3197223656 is a wasteful number, since it uses less digits than its factorization.

3197223656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302945 (or 3302930 counting only the distinct ones).

The product of its digits is 408240, while the sum is 44.

The square root of 3197223656 is about 56543.9975240520. The cubic root of 3197223656 is about 1473.1863036988.

The spelling of 3197223656 in words is "three billion, one hundred ninety-seven million, two hundred twenty-three thousand, six hundred fifty-six".