27964823 has 2 divisors, whose sum is σ = 27964824. Its totient is φ = 27964822.

The previous prime is 27964819. The next prime is 27964837. The reversal of 27964823 is 32846972.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27964823 - 2² = 27964819 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27964843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13982411 + 13982412.

It is an arithmetic number, because the mean of its divisors is an integer number (13982412).

Almost surely, 2^27964823 is an apocalyptic number.

27964823 is a deficient number, since it is larger than the sum of its proper divisors (1).

27964823 is an equidigital number, since it uses as much as digits as its factorization.

27964823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 27964823 is about 5288.1776634300. The cubic root of 27964823 is about 303.5316795041.

The spelling of 27964823 in words is "twenty-seven million, nine hundred sixty-four thousand, eight hundred twenty-three".