27100387 has 4 divisors (see below), whose sum is σ = 27118840. Its totient is φ = 27081936.

The previous prime is 27100373. The next prime is 27100399. The reversal of 27100387 is 78300172.

It is a happy number.

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 27100387 - 2¹¹ = 27098339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27100357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6813 + ... + 10030.

It is an arithmetic number, because the mean of its divisors is an integer number (6779710).

Almost surely, 2^27100387 is an apocalyptic number.

27100387 is a deficient number, since it is larger than the sum of its proper divisors (18453).

27100387 is a wasteful number, since it uses less digits than its factorization.

27100387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18452.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 27100387 is about 5205.8032041175. The cubic root of 27100387 is about 300.3713438598.

The spelling of 27100387 in words is "twenty-seven million, one hundred thousand, three hundred eighty-seven".