27698973 has 16 divisors (see below), whose sum is σ = 38438400. Its totient is φ = 17720640.

The previous prime is 27698963. The next prime is 27698999. The reversal of 27698973 is 37989672.

It is not a de Polignac number, because 27698973 - 2¹⁷ = 27567901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27698963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14868 + ... + 16626.

It is an arithmetic number, because the mean of its divisors is an integer number (2402400).

Almost surely, 2^27698973 is an apocalyptic number.

It is an amenable number.

27698973 is a deficient number, since it is larger than the sum of its proper divisors (10739427).

27698973 is a wasteful number, since it uses less digits than its factorization.

27698973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its digits is 1143072, while the sum is 51.

The square root of 27698973 is about 5262.9813794084. The cubic root of 27698973 is about 302.5667653099.

The spelling of 27698973 in words is "twenty-seven million, six hundred ninety-eight thousand, nine hundred seventy-three".