426387 has 18 divisors (see below), whose sum is σ = 637572. Its totient is φ = 253344.

The previous prime is 426383. The next prime is 426389. The reversal of 426387 is 783624.

It is not a de Polignac number, because 426387 - 2² = 426383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426383) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14689 + ... + 14717.

2⁴²⁶³⁸⁷ is an apocalyptic number.

426387 is a deficient number, since it is larger than the sum of its proper divisors (211185).

426387 is a wasteful number, since it uses less digits than its factorization.

426387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 45 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 426387 is about 652.9831544535. The cubic root of 426387 is about 75.2664301898.

It can be divided in two parts, 4263 and 87, that multiplied together give a square (370881 = 609²).

The spelling of 426387 in words is "four hundred twenty-six thousand, three hundred eighty-seven".