108427 has 4 divisors (see below), whose sum is σ = 118296. Its totient is φ = 98560.

The previous prime is 108421. The next prime is 108439. The reversal of 108427 is 724801.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 108427 - 2¹⁵ = 75659 is a prime.

It is a Duffinian number.

108427 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 108398 and 108407.

It is not an unprimeable number, because it can be changed into a prime (108421) 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, 4918 + ... + 4939.

It is an arithmetic number, because the mean of its divisors is an integer number (29574).

2¹⁰⁸⁴²⁷ is an apocalyptic number.

108427 is a deficient number, since it is larger than the sum of its proper divisors (9869).

108427 is an equidigital number, since it uses as much as digits as its factorization.

108427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9868.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 108427 is about 329.2825534401. The cubic root of 108427 is about 47.6847101615.

Multiplying 108427 by its product of nonzero digits (448), we get a triangular number (48575296 = T₉₈₅₆).

It can be divided in two parts, 1084 and 27, that added together give a palindrome (1111).

The spelling of 108427 in words is "one hundred eight thousand, four hundred twenty-seven".