427995863 has 2 divisors, whose sum is σ = 427995864. Its totient is φ = 427995862.

The previous prime is 427995857. The next prime is 427995871. The reversal of 427995863 is 368599724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427995863 - 2¹⁴ = 427979479 is a prime.

It is a super-2 number, since 2×427995863² = 366360917490229538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427995823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213997931 + 213997932.

It is an arithmetic number, because the mean of its divisors is an integer number (213997932).

Almost surely, 2^427995863 is an apocalyptic number.

427995863 is a deficient number, since it is larger than the sum of its proper divisors (1).

427995863 is an equidigital number, since it uses as much as digits as its factorization.

427995863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 53.

The square root of 427995863 is about 20688.0608806142. The cubic root of 427995863 is about 753.6097762211.

The spelling of 427995863 in words is "four hundred twenty-seven million, nine hundred ninety-five thousand, eight hundred sixty-three".