2198507 has 2 divisors, whose sum is σ = 2198508. Its totient is φ = 2198506.

The previous prime is 2198477. The next prime is 2198513. The reversal of 2198507 is 7058912.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2198507 is a prime.

It is not a weakly prime, because it can be changed into another prime (2198527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099253 + 1099254.

It is an arithmetic number, because the mean of its divisors is an integer number (1099254).

2^2198507 is an apocalyptic number.

2198507 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198507 is an equidigital number, since it uses as much as digits as its factorization.

2198507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2198507 is about 1482.7363218051. The cubic root of 2198507 is about 130.0297170722.

The spelling of 2198507 in words is "two million, one hundred ninety-eight thousand, five hundred seven".