427550886 has 80 divisors (see below), whose sum is σ = 1132734240. Its totient is φ = 117936000.

The previous prime is 427550839. The next prime is 427550909. The reversal of 427550886 is 688055724.

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 39 ways as a sum of consecutive naturals, for example, 26386 + ... + 39386.

It is an arithmetic number, because the mean of its divisors is an integer number (14159178).

Almost surely, 2^427550886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427550886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566367120).

427550886 is an abundant number, since it is smaller than the sum of its proper divisors (705183354).

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

427550886 is a wasteful number, since it uses less digits than its factorization.

427550886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13051 (or 13042 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 427550886 is about 20677.3036443343. The cubic root of 427550886 is about 753.3485156746.

The spelling of 427550886 in words is "four hundred twenty-seven million, five hundred fifty thousand, eight hundred eighty-six".