27261987 has 8 divisors (see below), whose sum is σ = 36466704. Its totient is φ = 18115968.

The previous prime is 27261977. The next prime is 27261991. The reversal of 27261987 is 78916272.

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

It is not a de Polignac number, because 27261987 - 2¹⁰ = 27260963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27261967) 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, 13578 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (4558338).

Almost surely, 2^27261987 is an apocalyptic number.

27261987 is a deficient number, since it is larger than the sum of its proper divisors (9204717).

27261987 is a wasteful number, since it uses less digits than its factorization.

27261987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29349.

The product of its digits is 84672, while the sum is 42.

The square root of 27261987 is about 5221.3012745866. The cubic root of 27261987 is about 300.9672006144.

The spelling of 27261987 in words is "twenty-seven million, two hundred sixty-one thousand, nine hundred eighty-seven".