27560991 has 8 divisors (see below), whose sum is σ = 38015280. Its totient is φ = 17740352.

The previous prime is 27560989. The next prime is 27560999. The reversal of 27560991 is 19906572.

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

It is a cyclic number.

It is not a de Polignac number, because 27560991 - 2¹ = 27560989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27560999) 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, 158310 + ... + 158483.

It is an arithmetic number, because the mean of its divisors is an integer number (4751910).

Almost surely, 2^27560991 is an apocalyptic number.

27560991 is a deficient number, since it is larger than the sum of its proper divisors (10454289).

27560991 is a wasteful number, since it uses less digits than its factorization.

27560991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316825.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 27560991 is about 5249.8562837472. The cubic root of 27560991 is about 302.0635182098.

The spelling of 27560991 in words is "twenty-seven million, five hundred sixty thousand, nine hundred ninety-one".