42856327 has 2 divisors, whose sum is σ = 42856328. Its totient is φ = 42856326.

The previous prime is 42856321. The next prime is 42856351. The reversal of 42856327 is 72365824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42856327 - 2¹⁵ = 42823559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42856321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21428163 + 21428164.

It is an arithmetic number, because the mean of its divisors is an integer number (21428164).

Almost surely, 2^42856327 is an apocalyptic number.

42856327 is a deficient number, since it is larger than the sum of its proper divisors (1).

42856327 is an equidigital number, since it uses as much as digits as its factorization.

42856327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 42856327 is about 6546.4743946647. The cubic root of 42856327 is about 349.9491817374.

The spelling of 42856327 in words is "forty-two million, eight hundred fifty-six thousand, three hundred twenty-seven".