27419987 has 8 divisors (see below), whose sum is σ = 31779072. Its totient is φ = 23171400.

The previous prime is 27419971. The next prime is 27419989. The reversal of 27419987 is 78991472.

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

It is not a de Polignac number, because 27419987 - 2⁴ = 27419971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27419989) 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, 27089 + ... + 28082.

It is an arithmetic number, because the mean of its divisors is an integer number (3972384).

Almost surely, 2^27419987 is an apocalyptic number.

27419987 is a deficient number, since it is larger than the sum of its proper divisors (4359085).

27419987 is an equidigital number, since it uses as much as digits as its factorization.

27419987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55249.

The product of its digits is 254016, while the sum is 47.

The square root of 27419987 is about 5236.4097433261. The cubic root of 27419987 is about 301.5475110468.

The spelling of 27419987 in words is "twenty-seven million, four hundred nineteen thousand, nine hundred eighty-seven".