27080991 has 24 divisors (see below), whose sum is σ = 45252480. Its totient is φ = 15285456.

The previous prime is 27080987. The next prime is 27081007. The reversal of 27080991 is 19908072.

It is a happy number.

It is not a de Polignac number, because 27080991 - 2² = 27080987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27080971) 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, 2640 + ... + 7818.

It is an arithmetic number, because the mean of its divisors is an integer number (1885520).

Almost surely, 2^27080991 is an apocalyptic number.

27080991 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27080991 is a deficient number, since it is larger than the sum of its proper divisors (18171489).

27080991 is a wasteful number, since it uses less digits than its factorization.

27080991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 27080991 is about 5203.9399496920. The cubic root of 27080991 is about 300.2996672322.

The spelling of 27080991 in words is "twenty-seven million, eighty thousand, nine hundred ninety-one".