427883231 has 2 divisors, whose sum is σ = 427883232. Its totient is φ = 427883230.

The previous prime is 427883227. The next prime is 427883279. The reversal of 427883231 is 132388724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427883231 - 2² = 427883227 is a prime.

It is a super-2 number, since 2×427883231² = 366168118741998722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427883531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213941615 + 213941616.

It is an arithmetic number, because the mean of its divisors is an integer number (213941616).

Almost surely, 2^427883231 is an apocalyptic number.

427883231 is a deficient number, since it is larger than the sum of its proper divisors (1).

427883231 is an equidigital number, since it uses as much as digits as its factorization.

427883231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 38.

The square root of 427883231 is about 20685.3385517376. The cubic root of 427883231 is about 753.5436634144.

The spelling of 427883231 in words is "four hundred twenty-seven million, eight hundred eighty-three thousand, two hundred thirty-one".