247943 has 2 divisors, whose sum is σ = 247944. Its totient is φ = 247942.

The previous prime is 247939. The next prime is 247957. The reversal of 247943 is 349742.

247943 is nontrivially palindromic in base 6.

247943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 247943 - 2² = 247939 is a prime.

It is a super-2 number, since 2×247943² = 122951462498, which contains 22 as substring.

247943 is an undulating number in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 247943.

It is not a weakly prime, because it can be changed into another prime (247913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123971 + 123972.

It is an arithmetic number, because the mean of its divisors is an integer number (123972).

2²⁴⁷⁹⁴³ is an apocalyptic number.

247943 is a deficient number, since it is larger than the sum of its proper divisors (1).

247943 is an equidigital number, since it uses as much as digits as its factorization.

247943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

The square root of 247943 is about 497.9387512536. The cubic root of 247943 is about 62.8227992732.

The spelling of 247943 in words is "two hundred forty-seven thousand, nine hundred forty-three".