247072 has 24 divisors (see below), whose sum is σ = 556416. Its totient is φ = 105792.

The previous prime is 247069. The next prime is 247073. The reversal of 247072 is 270742.

It is a super-2 number, since 2×247072² = 122089146368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328 + ... + 775.

It is an arithmetic number, because the mean of its divisors is an integer number (23184).

2²⁴⁷⁰⁷² is an apocalyptic number.

It is an amenable number.

247072 is an abundant number, since it is smaller than the sum of its proper divisors (309344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247072 is a wasteful number, since it uses less digits than its factorization.

247072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 247072 is about 497.0633762409. The cubic root of 247072 is about 62.7491494729.

It can be divided in two parts, 2 and 47072, that added together give a palindrome (47074).

The spelling of 247072 in words is "two hundred forty-seven thousand, seventy-two", and thus it is an iban number.