27021850 has 12 divisors (see below), whose sum is σ = 50260734. Its totient is φ = 10808720.

The previous prime is 27021821. The next prime is 27021859. The reversal of 27021850 is 5812072.

It can be written as a sum of positive squares in 3 ways, for example, as 25979409 + 1042441 = 5097^2 + 1021^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (27021859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270169 + ... + 270268.

Almost surely, 2^27021850 is an apocalyptic number.

27021850 is a deficient number, since it is larger than the sum of its proper divisors (23238884).

27021850 is a wasteful number, since it uses less digits than its factorization.

27021850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540449 (or 540444 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 27021850 is about 5198.2545147386. The cubic root of 27021850 is about 300.0809041057.

The spelling of 27021850 in words is "twenty-seven million, twenty-one thousand, eight hundred fifty".