426512687 has 4 divisors (see below), whose sum is σ = 432878616. Its totient is φ = 420146760.

The previous prime is 426512659. The next prime is 426512707. The reversal of 426512687 is 786215624.

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 426512687 - 2¹⁴ = 426496303 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 (426512087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3182864 + ... + 3182997.

It is an arithmetic number, because the mean of its divisors is an integer number (108219654).

Almost surely, 2^426512687 is an apocalyptic number.

426512687 is a deficient number, since it is larger than the sum of its proper divisors (6365929).

426512687 is an equidigital number, since it uses as much as digits as its factorization.

426512687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6365928.

The product of its digits is 161280, while the sum is 41.

The square root of 426512687 is about 20652.1835891511. The cubic root of 426512687 is about 752.7382494495.

The spelling of 426512687 in words is "four hundred twenty-six million, five hundred twelve thousand, six hundred eighty-seven".