27734945 has 16 divisors (see below), whose sum is σ = 38154240. Its totient is φ = 18959424.

The previous prime is 27734929. The next prime is 27734951. The reversal of 27734945 is 54943772.

It is a cyclic number.

It is not a de Polignac number, because 27734945 - 2⁴ = 27734929 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12371 + ... + 14439.

It is an arithmetic number, because the mean of its divisors is an integer number (2384640).

Almost surely, 2^27734945 is an apocalyptic number.

It is an amenable number.

27734945 is a deficient number, since it is larger than the sum of its proper divisors (10419295).

27734945 is a wasteful number, since it uses less digits than its factorization.

27734945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its digits is 211680, while the sum is 41.

The square root of 27734945 is about 5266.3977252008. The cubic root of 27734945 is about 302.6976874144.

The spelling of 27734945 in words is "twenty-seven million, seven hundred thirty-four thousand, nine hundred forty-five".