2197874 has 16 divisors (see below), whose sum is σ = 3870528. Its totient is φ = 916272.

The previous prime is 2197873. The next prime is 2197907. The reversal of 2197874 is 4787912.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 9 + 7 + 8⁵ + 7⁴ + 4⁸ .

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 7 ways as a sum of consecutive naturals, for example, 1604 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (241908).

2^2197874 is an apocalyptic number.

2197874 is a deficient number, since it is larger than the sum of its proper divisors (1672654).

2197874 is a wasteful number, since it uses less digits than its factorization.

2197874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289.

The product of its digits is 28224, while the sum is 38.

The square root of 2197874 is about 1482.5228497396. The cubic root of 2197874 is about 130.0172363733.

Adding to 2197874 its sum of digits (38), we get a palindrome (2197912).

The spelling of 2197874 in words is "two million, one hundred ninety-seven thousand, eight hundred seventy-four".