427677687 has 12 divisors (see below), whose sum is σ = 654095520. Its totient is φ = 268346688.

The previous prime is 427677673. The next prime is 427677739. The reversal of 427677687 is 786776724.

It is not a de Polignac number, because 427677687 - 2⁴ = 427677671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427677637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1397487 + ... + 1397792.

It is an arithmetic number, because the mean of its divisors is an integer number (54507960).

Almost surely, 2^427677687 is an apocalyptic number.

427677687 is a deficient number, since it is larger than the sum of its proper divisors (226417833).

427677687 is a wasteful number, since it uses less digits than its factorization.

427677687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795302 (or 2795299 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 54.

The square root of 427677687 is about 20680.3696050143. The cubic root of 427677687 is about 753.4229831484.

The spelling of 427677687 in words is "four hundred twenty-seven million, six hundred seventy-seven thousand, six hundred eighty-seven".