426871139 has 4 divisors (see below), whose sum is σ = 451981224. Its totient is φ = 401761056.

The previous prime is 426871129. The next prime is 426871153. The reversal of 426871139 is 931178624.

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 426871139 - 2⁸ = 426870883 is a prime.

It is a super-3 number, since 3×426871139³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426871096 and 426871105.

It is not an unprimeable number, because it can be changed into a prime (426871129) 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, 12555017 + ... + 12555050.

It is an arithmetic number, because the mean of its divisors is an integer number (112995306).

Almost surely, 2^426871139 is an apocalyptic number.

426871139 is a deficient number, since it is larger than the sum of its proper divisors (25110085).

426871139 is a wasteful number, since it uses less digits than its factorization.

426871139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25110084.

The product of its digits is 72576, while the sum is 41.

The square root of 426871139 is about 20660.8600740627. The cubic root of 426871139 is about 752.9490637945.

The spelling of 426871139 in words is "four hundred twenty-six million, eight hundred seventy-one thousand, one hundred thirty-nine".