427233887 has 12 divisors (see below), whose sum is σ = 448599840. Its totient is φ = 406792512.

The previous prime is 427233883. The next prime is 427233889. The reversal of 427233887 is 788332724.

It is not a de Polignac number, because 427233887 - 2² = 427233883 is a prime.

It is a super-2 number, since 2×427233887² = 365057588402257538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427233883) 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 in 11 ways as a sum of consecutive naturals, for example, 57914 + ... + 64872.

It is an arithmetic number, because the mean of its divisors is an integer number (37383320).

Almost surely, 2^427233887 is an apocalyptic number.

427233887 is a deficient number, since it is larger than the sum of its proper divisors (21365953).

427233887 is an equidigital number, since it uses as much as digits as its factorization.

427233887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090 (or 7061 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 427233887 is about 20669.6368376418. The cubic root of 427233887 is about 753.1622846093.

The spelling of 427233887 in words is "four hundred twenty-seven million, two hundred thirty-three thousand, eight hundred eighty-seven".