2198287 has 32 divisors (see below), whose sum is σ = 3024000. Its totient is φ = 1580544.

The previous prime is 2198269. The next prime is 2198291. The reversal of 2198287 is 7828912.

It is not a de Polignac number, because 2198287 - 2⁷ = 2198159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75789 + ... + 75817.

It is an arithmetic number, because the mean of its divisors is an integer number (94500).

2^2198287 is an apocalyptic number.

2198287 is a deficient number, since it is larger than the sum of its proper divisors (825713).

2198287 is a wasteful number, since it uses less digits than its factorization.

2198287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 66 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 2198287 is about 1482.6621327868. The cubic root of 2198287 is about 130.0253796602.

It can be divided in two parts, 2198 and 287, that added together give a triangular number (2485 = T₇₀).

The spelling of 2198287 in words is "two million, one hundred ninety-eight thousand, two hundred eighty-seven".