27420591 has 32 divisors (see below), whose sum is σ = 42497280. Its totient is φ = 15552000.

The previous prime is 27420583. The next prime is 27420611. The reversal of 27420591 is 19502472.

It is not a de Polignac number, because 27420591 - 2³ = 27420583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27420551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63111 + ... + 63543.

It is an arithmetic number, because the mean of its divisors is an integer number (1328040).

Almost surely, 2^27420591 is an apocalyptic number.

27420591 is a deficient number, since it is larger than the sum of its proper divisors (15076689).

27420591 is a wasteful number, since it uses less digits than its factorization.

27420591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 27420591 is about 5236.4674161117. The cubic root of 27420591 is about 301.5497251660.

The spelling of 27420591 in words is "twenty-seven million, four hundred twenty thousand, five hundred ninety-one".