27970983 has 12 divisors (see below), whose sum is σ = 42529240. Its totient is φ = 17665776.

The previous prime is 27970981. The next prime is 27971011. The reversal of 27970983 is 38907972.

It is not a de Polignac number, because 27970983 - 2¹ = 27970981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27970981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81616 + ... + 81957.

Almost surely, 2^27970983 is an apocalyptic number.

27970983 is a deficient number, since it is larger than the sum of its proper divisors (14558257).

27970983 is a wasteful number, since it uses less digits than its factorization.

27970983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163598 (or 163595 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 27970983 is about 5288.7600626234. The cubic root of 27970983 is about 303.5539648573.

The spelling of 27970983 in words is "twenty-seven million, nine hundred seventy thousand, nine hundred eighty-three".