2198347 has 2 divisors, whose sum is σ = 2198348. Its totient is φ = 2198346.

The previous prime is 2198327. The next prime is 2198359. The reversal of 2198347 is 7438912.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2198347 is a prime.

It is an Ulam number.

2198347 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2198327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099173 + 1099174.

It is an arithmetic number, because the mean of its divisors is an integer number (1099174).

2^2198347 is an apocalyptic number.

2198347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198347 is an equidigital number, since it uses as much as digits as its factorization.

2198347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 2198347 is about 1482.6823665236. The cubic root of 2198347 is about 130.0265626195.

The spelling of 2198347 in words is "two million, one hundred ninety-eight thousand, three hundred forty-seven".