27964745 has 16 divisors (see below), whose sum is σ = 35665920. Its totient is φ = 20976384.

The previous prime is 27964733. The next prime is 27964753. The reversal of 27964745 is 54746972.

It is a cyclic number.

It is not a de Polignac number, because 27964745 - 2¹⁰ = 27963721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27964696 and 27964705.

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, 32126 + ... + 32984.

It is an arithmetic number, because the mean of its divisors is an integer number (2229120).

Almost surely, 2^27964745 is an apocalyptic number.

It is an amenable number.

27964745 is a deficient number, since it is larger than the sum of its proper divisors (7701175).

27964745 is a wasteful number, since it uses less digits than its factorization.

27964745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264.

The product of its digits is 423360, while the sum is 44.

The square root of 27964745 is about 5288.1702884835. The cubic root of 27964745 is about 303.5313972984.

The spelling of 27964745 in words is "twenty-seven million, nine hundred sixty-four thousand, seven hundred forty-five".