427717686 has 32 divisors (see below), whose sum is σ = 933948288. Its totient is φ = 129507840.

The previous prime is 427717679. The next prime is 427717691. The reversal of 427717686 is 686717724.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 137925 + ... + 140991.

It is an arithmetic number, because the mean of its divisors is an integer number (29185884).

Almost surely, 2^427717686 is an apocalyptic number.

427717686 is an abundant number, since it is smaller than the sum of its proper divisors (506230602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427717686 is a wasteful number, since it uses less digits than its factorization.

427717686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5196.

The product of its digits is 790272, while the sum is 48.

The square root of 427717686 is about 20681.3366589300. The cubic root of 427717686 is about 753.4464706386.

The spelling of 427717686 in words is "four hundred twenty-seven million, seven hundred seventeen thousand, six hundred eighty-six".