27963345 has 32 divisors (see below), whose sum is σ = 47923200. Its totient is φ = 13881024.

The previous prime is 27963343. The next prime is 27963349. The reversal of 27963345 is 54336972.

It is not a de Polignac number, because 27963345 - 2¹ = 27963343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27963343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15984 + ... + 17646.

It is an arithmetic number, because the mean of its divisors is an integer number (1497600).

Almost surely, 2^27963345 is an apocalyptic number.

It is an amenable number.

27963345 is a deficient number, since it is larger than the sum of its proper divisors (19959855).

27963345 is a wasteful number, since it uses less digits than its factorization.

27963345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749.

The product of its digits is 136080, while the sum is 39.

The square root of 27963345 is about 5288.0379159004. The cubic root of 27963345 is about 303.5263319796.

The spelling of 27963345 in words is "twenty-seven million, nine hundred sixty-three thousand, three hundred forty-five".