247003 has 4 divisors (see below), whose sum is σ = 248920. Its totient is φ = 245088.

The previous prime is 247001. The next prime is 247007. The reversal of 247003 is 300742.

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

It is a cyclic number.

It is not a de Polignac number, because 247003 - 2¹ = 247001 is a prime.

It is a super-2 number, since 2×247003² = 122020964018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750 + ... + 1027.

It is an arithmetic number, because the mean of its divisors is an integer number (62230).

2²⁴⁷⁰⁰³ is an apocalyptic number.

247003 is a deficient number, since it is larger than the sum of its proper divisors (1917).

247003 is a wasteful number, since it uses less digits than its factorization.

247003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 247003 is about 496.9939637460. The cubic root of 247003 is about 62.7433075935.

Adding to 247003 its reverse (300742), we get a palindrome (547745).

The spelling of 247003 in words is "two hundred forty-seven thousand, three", and thus it is an iban number.