242727 has 4 divisors (see below), whose sum is σ = 323640. Its totient is φ = 161816.

The previous prime is 242713. The next prime is 242729. The reversal of 242727 is 727242.

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 242727 - 2¹⁵ = 209959 is a prime.

It is a D-number.

242727 is a modest number, since divided by 2727 gives 24 as remainder.

242727 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 242697 and 242706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40452 + ... + 40457.

It is an arithmetic number, because the mean of its divisors is an integer number (80910).

2²⁴²⁷²⁷ is an apocalyptic number.

242727 is a deficient number, since it is larger than the sum of its proper divisors (80913).

242727 is an equidigital number, since it uses as much as digits as its factorization.

242727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80912.

The product of its digits is 1568, while the sum is 24.

The square root of 242727 is about 492.6733197566. The cubic root of 242727 is about 62.3791370918.

Adding to 242727 its reverse (727242), we get a palindrome (969969).

It can be divided in two parts, 242 and 727, that added together give a palindrome (969).

The spelling of 242727 in words is "two hundred forty-two thousand, seven hundred twenty-seven", and thus it is an iban number.