27021049 has 4 divisors (see below), whose sum is σ = 29477520. Its totient is φ = 24564580.

The previous prime is 27021047. The next prime is 27021053. The reversal of 27021049 is 94012072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27021049 - 2¹ = 27021047 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 1228219 + ... + 1228240.

It is an arithmetic number, because the mean of its divisors is an integer number (7369380).

Almost surely, 2^27021049 is an apocalyptic number.

It is an amenable number.

27021049 is a deficient number, since it is larger than the sum of its proper divisors (2456471).

27021049 is a wasteful number, since it uses less digits than its factorization.

27021049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456470.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 27021049 is about 5198.1774690751. The cubic root of 27021049 is about 300.0779390092.

The spelling of 27021049 in words is "twenty-seven million, twenty-one thousand, forty-nine".