247998343 has 4 divisors (see below), whose sum is σ = 256550040. Its totient is φ = 239446648.

The previous prime is 247998337. The next prime is 247998349. The reversal of 247998343 is 343899742.

It is a happy number.

247998343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (247998337) and next prime (247998349).

It is a cyclic number.

It is not a de Polignac number, because 247998343 - 2¹⁷ = 247867271 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247998349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275805 + ... + 4275862.

It is an arithmetic number, because the mean of its divisors is an integer number (64137510).

Almost surely, 2^247998343 is an apocalyptic number.

247998343 is a deficient number, since it is larger than the sum of its proper divisors (8551697).

247998343 is an equidigital number, since it uses as much as digits as its factorization.

247998343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551696.

The product of its digits is 1306368, while the sum is 49.

The square root of 247998343 is about 15747.9631381331. The cubic root of 247998343 is about 628.2747312096.

The spelling of 247998343 in words is "two hundred forty-seven million, nine hundred ninety-eight thousand, three hundred forty-three".