427439339 has 4 divisors (see below), whose sum is σ = 429999024. Its totient is φ = 424879656.

The previous prime is 427439303. The next prime is 427439387. The reversal of 427439339 is 933934724.

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 427439339 - 2⁸ = 427439083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427439339.

It is not an unprimeable number, because it can be changed into a prime (427439399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279592 + ... + 1279925.

It is an arithmetic number, because the mean of its divisors is an integer number (107499756).

Almost surely, 2^427439339 is an apocalyptic number.

427439339 is a deficient number, since it is larger than the sum of its proper divisors (2559685).

427439339 is a wasteful number, since it uses less digits than its factorization.

427439339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559684.

The product of its digits is 489888, while the sum is 44.

The square root of 427439339 is about 20674.6061389329. The cubic root of 427439339 is about 753.2829943696.

The spelling of 427439339 in words is "four hundred twenty-seven million, four hundred thirty-nine thousand, three hundred thirty-nine".