27989270 has 8 divisors (see below), whose sum is σ = 50380704. Its totient is φ = 11195704.

The previous prime is 27989251. The next prime is 27989287. The reversal of 27989270 is 7298972.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399454 + ... + 1399473.

It is an arithmetic number, because the mean of its divisors is an integer number (6297588).

Almost surely, 2^27989270 is an apocalyptic number.

27989270 is a deficient number, since it is larger than the sum of its proper divisors (22391434).

27989270 is a wasteful number, since it uses less digits than its factorization.

27989270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798934.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 27989270 is about 5290.4886352775. The cubic root of 27989270 is about 303.6201034226.

The spelling of 27989270 in words is "twenty-seven million, nine hundred eighty-nine thousand, two hundred seventy".