471947028 has 72 divisors (see below), whose sum is σ = 1336732992. Its totient is φ = 128975616.

The previous prime is 471947009. The next prime is 471947029. The reversal of 471947028 is 820749174.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471947029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3925 + ... + 30972.

It is an arithmetic number, because the mean of its divisors is an integer number (18565736).

Almost surely, 2^471947028 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 471947028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668366496).

471947028 is an abundant number, since it is smaller than the sum of its proper divisors (864785964).

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

471947028 is a wasteful number, since it uses less digits than its factorization.

471947028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34941 (or 34932 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 471947028 is about 21724.3418312270. The cubic root of 471947028 is about 778.5701549937.

The spelling of 471947028 in words is "four hundred seventy-one million, nine hundred forty-seven thousand, twenty-eight".