100027 has 4 divisors (see below), whose sum is σ = 104400. Its totient is φ = 95656.

The previous prime is 100019. The next prime is 100043. The reversal of 100027 is 720001.

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 100027 - 2³ = 100019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99986 and 100022.

It is not an unprimeable number, because it can be changed into a prime (100057) 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, 2152 + ... + 2197.

It is an arithmetic number, because the mean of its divisors is an integer number (26100).

2¹⁰⁰⁰²⁷ is an apocalyptic number.

100027 is a deficient number, since it is larger than the sum of its proper divisors (4373).

100027 is an equidigital number, since it uses as much as digits as its factorization.

100027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372.

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 100027 is about 316.2704538840. The cubic root of 100027 is about 46.4200653902.

Adding to 100027 its reverse (720001), we get a palindrome (820028).

It can be divided in two parts, 1000 and 27, that multiplied together give a cube (27000 = 30³).

The spelling of 100027 in words is "one hundred thousand, twenty-seven", and thus it is an iban number.