2197663 has 8 divisors (see below), whose sum is σ = 2401056. Its totient is φ = 1999200.

The previous prime is 2197651. The next prime is 2197681. The reversal of 2197663 is 3667912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2197663 - 2⁵ = 2197631 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197603) 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, 268 + ... + 2113.

It is an arithmetic number, because the mean of its divisors is an integer number (300132).

2^2197663 is an apocalyptic number.

2197663 is a deficient number, since it is larger than the sum of its proper divisors (203393).

2197663 is a wasteful number, since it uses less digits than its factorization.

2197663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465.

The product of its digits is 13608, while the sum is 34.

The square root of 2197663 is about 1482.4516855534. The cubic root of 2197663 is about 130.0130756079.

The spelling of 2197663 in words is "two million, one hundred ninety-seven thousand, six hundred sixty-three".