27933969 has 12 divisors (see below), whose sum is σ = 43326384. Its totient is φ = 15962184.

The previous prime is 27933967. The next prime is 27933973. The reversal of 27933969 is 96933972.

It is not a de Polignac number, because 27933969 - 2¹ = 27933967 is a prime.

It is a super-2 number, since 2×27933969² = 1560613248185922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27933967) 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, 94867 + ... + 95160.

It is an arithmetic number, because the mean of its divisors is an integer number (3610532).

Almost surely, 2^27933969 is an apocalyptic number.

It is an amenable number.

27933969 is a deficient number, since it is larger than the sum of its proper divisors (15392415).

27933969 is a wasteful number, since it uses less digits than its factorization.

27933969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190044 (or 190037 counting only the distinct ones).

The product of its digits is 551124, while the sum is 48.

The square root of 27933969 is about 5285.2595962734. The cubic root of 27933969 is about 303.4200081042.

The spelling of 27933969 in words is "twenty-seven million, nine hundred thirty-three thousand, nine hundred sixty-nine".