108005427 has 16 divisors (see below), whose sum is σ = 160220160. Its totient is φ = 71908200.

The previous prime is 108005423. The next prime is 108005431. The reversal of 108005427 is 724500801.

It is an interprime number because it is at equal distance from previous prime (108005423) and next prime (108005431).

It is not a de Polignac number, because 108005427 - 2² = 108005423 is a prime.

It is a super-3 number, since 3×108005427³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 108005427.

It is not an unprimeable number, because it can be changed into a prime (108005423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22402 + ... + 26792.

It is an arithmetic number, because the mean of its divisors is an integer number (10013760).

Almost surely, 2^108005427 is an apocalyptic number.

108005427 is a deficient number, since it is larger than the sum of its proper divisors (52214733).

108005427 is an equidigital number, since it uses as much as digits as its factorization.

108005427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311 (or 5305 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 108005427 is about 10392.5659487924. The cubic root of 108005427 is about 476.2282921471.

The spelling of 108005427 in words is "one hundred eight million, five thousand, four hundred twenty-seven".