2197872 has 30 divisors (see below), whose sum is σ = 6151392. Its totient is φ = 732576.

The previous prime is 2197849. The next prime is 2197873. The reversal of 2197872 is 2787912.

2197872 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7488 + ... + 7775.

2^2197872 is an apocalyptic number.

It is an amenable number.

2197872 is an abundant number, since it is smaller than the sum of its proper divisors (3953520).

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

2197872 is a wasteful number, since it uses less digits than its factorization.

2197872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15277 (or 15268 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2197872 is about 1482.5221752136. The cubic root of 2197872 is about 130.0171969361.

The spelling of 2197872 in words is "two million, one hundred ninety-seven thousand, eight hundred seventy-two".