427387 has 4 divisors (see below), whose sum is σ = 438976. Its totient is φ = 415800.

The previous prime is 427381. The next prime is 427403. The reversal of 427387 is 783724.

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 427387 - 2³ = 427379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5739 + ... + 5812.

It is an arithmetic number, because the mean of its divisors is an integer number (109744).

2⁴²⁷³⁸⁷ is an apocalyptic number.

427387 is a deficient number, since it is larger than the sum of its proper divisors (11589).

427387 is a wasteful number, since it uses less digits than its factorization.

427387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11588.

The product of its digits is 9408, while the sum is 31.

The square root of 427387 is about 653.7484225602. The cubic root of 427387 is about 75.3252247170.

The spelling of 427387 in words is "four hundred twenty-seven thousand, three hundred eighty-seven".