2198671 has 2 divisors, whose sum is σ = 2198672. Its totient is φ = 2198670.

The previous prime is 2198663. The next prime is 2198689. The reversal of 2198671 is 1768912.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2198671 - 2³ = 2198663 is a prime.

2198671 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2195671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099335 + 1099336.

It is an arithmetic number, because the mean of its divisors is an integer number (1099336).

2^2198671 is an apocalyptic number.

2198671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198671 is an equidigital number, since it uses as much as digits as its factorization.

2198671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 34.

The square root of 2198671 is about 1482.7916239310. The cubic root of 2198671 is about 130.0329502275.

The spelling of 2198671 in words is "two million, one hundred ninety-eight thousand, six hundred seventy-one".