27696123 has 36 divisors (see below), whose sum is σ = 50127168. Its totient is φ = 14605920.

The previous prime is 27696103. The next prime is 27696139. The reversal of 27696123 is 32169672.

It is not a de Polignac number, because 27696123 - 2⁶ = 27696059 is a prime.

It is a super-2 number, since 2×27696123² = 1534150458462258, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (27696103) 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 35 ways as a sum of consecutive naturals, for example, 3318 + ... + 8148.

Almost surely, 2^27696123 is an apocalyptic number.

27696123 is a deficient number, since it is larger than the sum of its proper divisors (22431045).

27696123 is a wasteful number, since it uses less digits than its factorization.

27696123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864 (or 4854 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 27696123 is about 5262.7106133627. The cubic root of 27696123 is about 302.5563877307.

The spelling of 27696123 in words is "twenty-seven million, six hundred ninety-six thousand, one hundred twenty-three".