247198 has 8 divisors (see below), whose sum is σ = 423792. Its totient is φ = 105936.

The previous prime is 247193. The next prime is 247201. The reversal of 247198 is 891742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×247198² = 122213702408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247193) by changing a digit.

247198 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 8815 + ... + 8842.

It is an arithmetic number, because the mean of its divisors is an integer number (52974).

2²⁴⁷¹⁹⁸ is an apocalyptic number.

247198 is a deficient number, since it is larger than the sum of its proper divisors (176594).

247198 is a wasteful number, since it uses less digits than its factorization.

247198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17666.

The product of its digits is 4032, while the sum is 31.

The square root of 247198 is about 497.1901044872. The cubic root of 247198 is about 62.7598144466.

The spelling of 247198 in words is "two hundred forty-seven thousand, one hundred ninety-eight".