427512887 has 4 divisors (see below), whose sum is σ = 427593000. Its totient is φ = 427432776.

The previous prime is 427512881. The next prime is 427512907. The reversal of 427512887 is 788215724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427512887 - 2⁴ = 427512871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427512881) 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 3 ways as a sum of consecutive naturals, for example, 31433 + ... + 42930.

It is an arithmetic number, because the mean of its divisors is an integer number (106898250).

Almost surely, 2^427512887 is an apocalyptic number.

427512887 is a deficient number, since it is larger than the sum of its proper divisors (80113).

427512887 is an equidigital number, since it uses as much as digits as its factorization.

427512887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80112.

The product of its digits is 250880, while the sum is 44.

The square root of 427512887 is about 20676.3847662013. The cubic root of 427512887 is about 753.3261968198.

The spelling of 427512887 in words is "four hundred twenty-seven million, five hundred twelve thousand, eight hundred eighty-seven".