27045870 has 16 divisors (see below), whose sum is σ = 64910160. Its totient is φ = 7212224.

The previous prime is 27045859. The next prime is 27045871. The reversal of 27045870 is 7854072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27045871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450735 + ... + 450794.

It is an arithmetic number, because the mean of its divisors is an integer number (4056885).

Almost surely, 2^27045870 is an apocalyptic number.

27045870 is an abundant number, since it is smaller than the sum of its proper divisors (37864290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27045870 is a wasteful number, since it uses less digits than its factorization.

27045870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901539.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 27045870 is about 5200.5643924482. The cubic root of 27045870 is about 300.1697927721.

The spelling of 27045870 in words is "twenty-seven million, forty-five thousand, eight hundred seventy".