427239 has 12 divisors (see below), whose sum is σ = 634296. Its totient is φ = 276912.

The previous prime is 427237. The next prime is 427241. The reversal of 427239 is 932724.

427239 is a `hidden beast` number, since 427 + 239 = 666.

It is an interprime number because it is at equal distance from previous prime (427237) and next prime (427241).

It is not a de Polignac number, because 427239 - 2¹ = 427237 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

427239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309 + ... + 974.

It is an arithmetic number, because the mean of its divisors is an integer number (52858).

2⁴²⁷²³⁹ is an apocalyptic number.

427239 is a deficient number, since it is larger than the sum of its proper divisors (207057).

427239 is a wasteful number, since it uses less digits than its factorization.

427239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1323 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 427239 is about 653.6352193693. The cubic root of 427239 is about 75.3165289133.

It can be divided in two parts, 427 and 239, that added together give a palindrome (666).

The spelling of 427239 in words is "four hundred twenty-seven thousand, two hundred thirty-nine".