2198655 has 12 divisors (see below), whose sum is σ = 3811080. Its totient is φ = 1172592.

The previous prime is 2198653. The next prime is 2198659. The reversal of 2198655 is 5568912.

It is a happy number.

It is not a de Polignac number, because 2198655 - 2¹ = 2198653 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24385 + ... + 24474.

It is an arithmetic number, because the mean of its divisors is an integer number (317590).

2^2198655 is an apocalyptic number.

2198655 is a deficient number, since it is larger than the sum of its proper divisors (1612425).

2198655 is a wasteful number, since it uses less digits than its factorization.

2198655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48870 (or 48867 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 2198655 is about 1482.7862286925. The cubic root of 2198655 is about 130.0326348048.

The spelling of 2198655 in words is "two million, one hundred ninety-eight thousand, six hundred fifty-five".