247023 has 16 divisors (see below), whose sum is σ = 418560. Its totient is φ = 141048.

The previous prime is 247007. The next prime is 247031. The reversal of 247023 is 320742.

It is a happy number.

It is not a de Polignac number, because 247023 - 2⁴ = 247007 is a prime.

It is a super-2 number, since 2×247023² = 122040725058, which contains 22 as substring.

247023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 246987 and 247005.

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 247023.

It is not an unprimeable number, because it can be changed into a prime (247073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465 + ... + 842.

It is an arithmetic number, because the mean of its divisors is an integer number (26160).

2²⁴⁷⁰²³ is an apocalyptic number.

247023 is a deficient number, since it is larger than the sum of its proper divisors (171537).

247023 is a wasteful number, since it uses less digits than its factorization.

247023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 247023 is about 497.0140843075. The cubic root of 247023 is about 62.7450010039.

Adding to 247023 its reverse (320742), we get a palindrome (567765).

The spelling of 247023 in words is "two hundred forty-seven thousand, twenty-three", and thus it is an iban number.