27021772 has 12 divisors (see below), whose sum is σ = 50069880. Its totient is φ = 12716096.

The previous prime is 27021727. The next prime is 27021773. The reversal of 27021772 is 27712072.

It is a self number, because there is not a number n which added to its sum of digits gives 27021772.

It is not an unprimeable number, because it can be changed into a prime (27021773) 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, 198622 + ... + 198757.

It is an arithmetic number, because the mean of its divisors is an integer number (4172490).

Almost surely, 2^27021772 is an apocalyptic number.

It is an amenable number.

27021772 is a deficient number, since it is larger than the sum of its proper divisors (23048108).

27021772 is a wasteful number, since it uses less digits than its factorization.

27021772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397400 (or 397398 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 27021772 is about 5198.2470122148. The cubic root of 27021772 is about 300.0806153723.

The spelling of 27021772 in words is "twenty-seven million, twenty-one thousand, seven hundred seventy-two".