427881339 has 8 divisors (see below), whose sum is σ = 633898320. Its totient is φ = 285254208.

The previous prime is 427881317. The next prime is 427881343. The reversal of 427881339 is 933188724.

It is not a de Polignac number, because 427881339 - 2²¹ = 425784187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427881294 and 427881303.

It is not an unprimeable number, because it can be changed into a prime (427882339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7923702 + ... + 7923755.

It is an arithmetic number, because the mean of its divisors is an integer number (79237290).

Almost surely, 2^427881339 is an apocalyptic number.

427881339 is a deficient number, since it is larger than the sum of its proper divisors (206016981).

427881339 is a wasteful number, since it uses less digits than its factorization.

427881339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15847466 (or 15847460 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 427881339 is about 20685.2928188121. The cubic root of 427881339 is about 753.5425527479.

The spelling of 427881339 in words is "four hundred twenty-seven million, eight hundred eighty-one thousand, three hundred thirty-nine".