23278727 has 2 divisors, whose sum is σ = 23278728. Its totient is φ = 23278726.

The previous prime is 23278711. The next prime is 23278753. The reversal of 23278727 is 72787232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23278727 - 2⁴ = 23278711 is a prime.

It is a Chen prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23278777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11639363 + 11639364.

It is an arithmetic number, because the mean of its divisors is an integer number (11639364).

Almost surely, 2^23278727 is an apocalyptic number.

23278727 is a deficient number, since it is larger than the sum of its proper divisors (1).

23278727 is an equidigital number, since it uses as much as digits as its factorization.

23278727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 38.

The square root of 23278727 is about 4824.8033120532. The cubic root of 23278727 is about 285.5308746794.

The spelling of 23278727 in words is "twenty-three million, two hundred seventy-eight thousand, seven hundred twenty-seven".