2197441 has 4 divisors (see below), whose sum is σ = 2205652. Its totient is φ = 2189232.

The previous prime is 2197427. The next prime is 2197453. The reversal of 2197441 is 1447912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 497025 + 1700416 = 705^2 + 1304^2 .

It is a cyclic number.

It is not a de Polignac number, because 2197441 - 2⁵ = 2197409 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2197411) 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, 3690 + ... + 4243.

It is an arithmetic number, because the mean of its divisors is an integer number (551413).

2^2197441 is an apocalyptic number.

It is an amenable number.

2197441 is a deficient number, since it is larger than the sum of its proper divisors (8211).

2197441 is an equidigital number, since it uses as much as digits as its factorization.

2197441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8210.

The product of its digits is 2016, while the sum is 28.

The square root of 2197441 is about 1482.3768076977. The cubic root of 2197441 is about 130.0086976429.

The spelling of 2197441 in words is "two million, one hundred ninety-seven thousand, four hundred forty-one".