27705028 has 12 divisors (see below), whose sum is σ = 52213420. Its totient is φ = 12786912.

The previous prime is 27705023. The next prime is 27705047. The reversal of 27705028 is 82050772.

It can be written as a sum of positive squares in 2 ways, for example, as 4588164 + 23116864 = 2142^2 + 4808^2 .

It is not an unprimeable number, because it can be changed into a prime (27705023) 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, 266343 + ... + 266446.

Almost surely, 2^27705028 is an apocalyptic number.

It is an amenable number.

27705028 is a deficient number, since it is larger than the sum of its proper divisors (24508392).

27705028 is a wasteful number, since it uses less digits than its factorization.

27705028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532806 (or 532804 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 27705028 is about 5263.5565922672. The cubic root of 27705028 is about 302.5888107517.

The spelling of 27705028 in words is "twenty-seven million, seven hundred five thousand, twenty-eight".