427807871 has 2 divisors, whose sum is σ = 427807872. Its totient is φ = 427807870.

The previous prime is 427807867. The next prime is 427807951. The reversal of 427807871 is 178708724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427807871 - 2² = 427807867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427807841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213903935 + 213903936.

It is an arithmetic number, because the mean of its divisors is an integer number (213903936).

Almost surely, 2^427807871 is an apocalyptic number.

427807871 is a deficient number, since it is larger than the sum of its proper divisors (1).

427807871 is an equidigital number, since it uses as much as digits as its factorization.

427807871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 175616, while the sum is 44.

The square root of 427807871 is about 20683.5168914767. The cubic root of 427807871 is about 753.4994220728.

The spelling of 427807871 in words is "four hundred twenty-seven million, eight hundred seven thousand, eight hundred seventy-one".