247233 has 16 divisors (see below), whose sum is σ = 384896. Its totient is φ = 138240.

The previous prime is 247229. The next prime is 247241. The reversal of 247233 is 332742.

It is a happy number.

247233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 247233 - 2² = 247229 is a prime.

It is a super-2 number, since 2×247233² = 122248312578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247223) 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, 1185 + ... + 1377.

It is an arithmetic number, because the mean of its divisors is an integer number (24056).

2²⁴⁷²³³ is an apocalyptic number.

It is an amenable number.

247233 is a deficient number, since it is larger than the sum of its proper divisors (137663).

247233 is a wasteful number, since it uses less digits than its factorization.

247233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264.

The product of its digits is 1008, while the sum is 21.

The square root of 247233 is about 497.2253010457. The cubic root of 247233 is about 62.7627762962.

Adding to 247233 its reverse (332742), we get a palindrome (579975).

The spelling of 247233 in words is "two hundred forty-seven thousand, two hundred thirty-three".