427861 has 8 divisors (see below), whose sum is σ = 514880. Its totient is φ = 347328.

The previous prime is 427859. The next prime is 427877. The reversal of 427861 is 168724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 427861 - 2¹ = 427859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422861) 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, 1476 + ... + 1741.

It is an arithmetic number, because the mean of its divisors is an integer number (64360).

2⁴²⁷⁸⁶¹ is an apocalyptic number.

It is an amenable number.

427861 is a deficient number, since it is larger than the sum of its proper divisors (87019).

427861 is a wasteful number, since it uses less digits than its factorization.

427861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243.

The product of its digits is 2688, while the sum is 28.

The square root of 427861 is about 654.1108468754. The cubic root of 427861 is about 75.3530612876.

The spelling of 427861 in words is "four hundred twenty-seven thousand, eight hundred sixty-one".