27091000 has 32 divisors (see below), whose sum is σ = 63395280. Its totient is φ = 10836000.

The previous prime is 27090991. The next prime is 27091007. The reversal of 27091000 is 19072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27091007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12546 + ... + 14545.

Almost surely, 2^27091000 is an apocalyptic number.

27091000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27091000 is an abundant number, since it is smaller than the sum of its proper divisors (36304280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27091000 is a wasteful number, since it uses less digits than its factorization.

27091000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27112 (or 27098 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 27091000 is about 5204.9015360523. The cubic root of 27091000 is about 300.3366590979.

The spelling of 27091000 in words is "twenty-seven million, ninety-one thousand".