27004491 has 24 divisors (see below), whose sum is σ = 41600000. Its totient is φ = 16831152.

The previous prime is 27004457. The next prime is 27004501. The reversal of 27004491 is 19440072.

It is a happy number.

It is not a de Polignac number, because 27004491 - 2⁶ = 27004427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27004421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12510 + ... + 14508.

Almost surely, 2^27004491 is an apocalyptic number.

27004491 is a deficient number, since it is larger than the sum of its proper divisors (14595509).

27004491 is a wasteful number, since it uses less digits than its factorization.

27004491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2100 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 27004491 is about 5196.5845514145. The cubic root of 27004491 is about 300.0166324112.

It can be divided in two parts, 27004 and 491, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 27004491 in words is "twenty-seven million, four thousand, four hundred ninety-one".