426887 has 4 divisors (see below), whose sum is σ = 452016. Its totient is φ = 401760.

The previous prime is 426871. The next prime is 426889. The reversal of 426887 is 788624.

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 426887 - 2⁴ = 426871 is a prime.

It is a super-3 number, since 3×426887³ = 233378069473938309, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426889) 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, 12539 + ... + 12572.

It is an arithmetic number, because the mean of its divisors is an integer number (113004).

2⁴²⁶⁸⁸⁷ is an apocalyptic number.

426887 is a deficient number, since it is larger than the sum of its proper divisors (25129).

426887 is a wasteful number, since it uses less digits than its factorization.

426887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25128.

The product of its digits is 21504, while the sum is 35.

The square root of 426887 is about 653.3659005488. The cubic root of 426887 is about 75.2958389308.

The spelling of 426887 in words is "four hundred twenty-six thousand, eight hundred eighty-seven".