27940895 has 4 divisors (see below), whose sum is σ = 33529080. Its totient is φ = 22352712.

The previous prime is 27940879. The next prime is 27940897. The reversal of 27940895 is 59804972.

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 27940895 - 2⁴ = 27940879 is a prime.

It is a super-2 number, since 2×27940895² = 1561387226802050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27940897) 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, 2794085 + ... + 2794094.

It is an arithmetic number, because the mean of its divisors is an integer number (8382270).

Almost surely, 2^27940895 is an apocalyptic number.

27940895 is a deficient number, since it is larger than the sum of its proper divisors (5588185).

27940895 is an equidigital number, since it uses as much as digits as its factorization.

27940895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5588184.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 27940895 is about 5285.9147741900. The cubic root of 27940895 is about 303.4450828715.

The spelling of 27940895 in words is "twenty-seven million, nine hundred forty thousand, eight hundred ninety-five".