27870149 has 8 divisors (see below), whose sum is σ = 28670400. Its totient is φ = 27076896.

The previous prime is 27870133. The next prime is 27870163. The reversal of 27870149 is 94107872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27870149 - 2⁴ = 27870133 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27870109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6929 + ... + 10185.

It is an arithmetic number, because the mean of its divisors is an integer number (3583800).

Almost surely, 2^27870149 is an apocalyptic number.

It is an amenable number.

27870149 is a deficient number, since it is larger than the sum of its proper divisors (800251).

27870149 is a wasteful number, since it uses less digits than its factorization.

27870149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 27870149 is about 5279.2185974820. The cubic root of 27870149 is about 303.1887600173.

The spelling of 27870149 in words is "twenty-seven million, eight hundred seventy thousand, one hundred forty-nine".