27078923 has 2 divisors, whose sum is σ = 27078924. Its totient is φ = 27078922.

The previous prime is 27078917. The next prime is 27078959. The reversal of 27078923 is 32987072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27078923 - 2⁴ = 27078907 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (27078913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13539461 + 13539462.

It is an arithmetic number, because the mean of its divisors is an integer number (13539462).

Almost surely, 2^27078923 is an apocalyptic number.

27078923 is a deficient number, since it is larger than the sum of its proper divisors (1).

27078923 is an equidigital number, since it uses as much as digits as its factorization.

27078923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 27078923 is about 5203.7412502929. The cubic root of 27078923 is about 300.2920230570.

The spelling of 27078923 in words is "twenty-seven million, seventy-eight thousand, nine hundred twenty-three".