247701 has 4 divisors (see below), whose sum is σ = 330272. Its totient is φ = 165132.

The previous prime is 247697. The next prime is 247711. The reversal of 247701 is 107742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 247701 - 2² = 247697 is a prime.

It is a super-2 number, since 2×247701² = 122711570802, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

247701 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247711) 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, 41281 + ... + 41286.

It is an arithmetic number, because the mean of its divisors is an integer number (82568).

2²⁴⁷⁷⁰¹ is an apocalyptic number.

It is an amenable number.

247701 is a deficient number, since it is larger than the sum of its proper divisors (82571).

247701 is an equidigital number, since it uses as much as digits as its factorization.

247701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82570.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 247701 is about 497.6956901561. The cubic root of 247701 is about 62.8023536246.

The spelling of 247701 in words is "two hundred forty-seven thousand, seven hundred one", and thus it is an iban number.