27668345 has 16 divisors (see below), whose sum is σ = 34266240. Its totient is φ = 21436800.

The previous prime is 27668323. The next prime is 27668353. The reversal of 27668345 is 54386672.

It is a happy number.

It is not a de Polignac number, because 27668345 - 2¹⁴ = 27651961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20285 + ... + 21605.

It is an arithmetic number, because the mean of its divisors is an integer number (2141640).

Almost surely, 2^27668345 is an apocalyptic number.

It is an amenable number.

27668345 is a deficient number, since it is larger than the sum of its proper divisors (6597895).

27668345 is a wasteful number, since it uses less digits than its factorization.

27668345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456.

The product of its digits is 241920, while the sum is 41.

The square root of 27668345 is about 5260.0708170138. The cubic root of 27668345 is about 302.4552036209.

It can be divided in two parts, 2766 and 8345, that added together give a palindrome (11111).

The spelling of 27668345 in words is "twenty-seven million, six hundred sixty-eight thousand, three hundred forty-five".