247423 has 8 divisors (see below), whose sum is σ = 274176. Its totient is φ = 221400.

The previous prime is 247421. The next prime is 247433. The reversal of 247423 is 324742.

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

It is a cyclic number.

It is not a de Polignac number, because 247423 - 2¹ = 247421 is a prime.

It is a super-2 number, since 2×247423² = 122436281858, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 247394 and 247403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (34272).

2²⁴⁷⁴²³ is an apocalyptic number.

247423 is a deficient number, since it is larger than the sum of its proper divisors (26753).

247423 is a wasteful number, since it uses less digits than its factorization.

247423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its digits is 1344, while the sum is 22.

The square root of 247423 is about 497.4163246215. The cubic root of 247423 is about 62.7788500323.

It can be divided in two parts, 24 and 7423, that added together give a palindrome (7447).

The spelling of 247423 in words is "two hundred forty-seven thousand, four hundred twenty-three", and thus it is an iban number.