427472856 has 64 divisors (see below), whose sum is σ = 1196851200. Its totient is φ = 141359904.

The previous prime is 427472827. The next prime is 427472873. The reversal of 427472856 is 658274724.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19641 + ... + 35223.

It is an arithmetic number, because the mean of its divisors is an integer number (18700800).

Almost surely, 2^427472856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427472856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598425600).

427472856 is an abundant number, since it is smaller than the sum of its proper divisors (769378344).

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

427472856 is a wasteful number, since it uses less digits than its factorization.

427472856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15725 (or 15715 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 427472856 is about 20675.4167068042. The cubic root of 427472856 is about 753.3026830317.

The spelling of 427472856 in words is "four hundred twenty-seven million, four hundred seventy-two thousand, eight hundred fifty-six".