1198447 has 2 divisors, whose sum is σ = 1198448. Its totient is φ = 1198446.

The previous prime is 1198433. The next prime is 1198451. The reversal of 1198447 is 7448911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1198447 - 2¹¹ = 1196399 is a prime.

It is a plaindrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1198427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599223 + 599224.

It is an arithmetic number, because the mean of its divisors is an integer number (599224).

2^1198447 is an apocalyptic number.

1198447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198447 is an equidigital number, since it uses as much as digits as its factorization.

1198447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 1198447 is about 1094.7360412446. The cubic root of 1198447 is about 106.2199952184.

The spelling of 1198447 in words is "one million, one hundred ninety-eight thousand, four hundred forty-seven".