32197812 has 12 divisors (see below), whose sum is σ = 75128256. Its totient is φ = 10732600.

The previous prime is 32197811. The next prime is 32197819. The reversal of 32197812 is 21879123.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32197811) 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, 1341564 + ... + 1341587.

It is an arithmetic number, because the mean of its divisors is an integer number (6260688).

Almost surely, 2^32197812 is an apocalyptic number.

It is an amenable number.

32197812 is an abundant number, since it is smaller than the sum of its proper divisors (42930444).

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

32197812 is a wasteful number, since it uses less digits than its factorization.

32197812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683158 (or 2683156 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 32197812 is about 5674.3115882017. The cubic root of 32197812 is about 318.1330482381.

The spelling of 32197812 in words is "thirty-two million, one hundred ninety-seven thousand, eight hundred twelve".