27021045 has 8 divisors (see below), whose sum is σ = 43233696. Its totient is φ = 14411216.

The previous prime is 27021037. The next prime is 27021047. The reversal of 27021045 is 54012072.

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 27021045 - 2³ = 27021037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27021047) 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, 900687 + ... + 900716.

It is an arithmetic number, because the mean of its divisors is an integer number (5404212).

Almost surely, 2^27021045 is an apocalyptic number.

It is an amenable number.

27021045 is a deficient number, since it is larger than the sum of its proper divisors (16212651).

27021045 is a wasteful number, since it uses less digits than its factorization.

27021045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801411.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 27021045 is about 5198.1770843249. The cubic root of 27021045 is about 300.0779242021.

The spelling of 27021045 in words is "twenty-seven million, twenty-one thousand, forty-five".