27956887 has 8 divisors (see below), whose sum is σ = 32007456. Its totient is φ = 23920512.

The previous prime is 27956881. The next prime is 27956893. The reversal of 27956887 is 78865972.

It is an interprime number because it is at equal distance from previous prime (27956881) and next prime (27956893).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27956887 - 2³ = 27956879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27956881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083 + ... + 7555.

It is an arithmetic number, because the mean of its divisors is an integer number (4000932).

Almost surely, 2^27956887 is an apocalyptic number.

27956887 is a deficient number, since it is larger than the sum of its proper divisors (4050569).

27956887 is an equidigital number, since it uses as much as digits as its factorization.

27956887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097.

The product of its digits is 1693440, while the sum is 52.

The square root of 27956887 is about 5287.4272571828. The cubic root of 27956887 is about 303.5029641986.

The spelling of 27956887 in words is "twenty-seven million, nine hundred fifty-six thousand, eight hundred eighty-seven".