47051928 has 320 divisors, whose sum is σ = 175633920. Its totient is φ = 11404800.

The previous prime is 47051909. The next prime is 47051947. The reversal of 47051928 is 82915074.

It is an interprime number because it is at equal distance from previous prime (47051909) and next prime (47051947).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47051892 and 47051901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1147588 + ... + 1147628.

It is an arithmetic number, because the mean of its divisors is an integer number (548856).

Almost surely, 2^47051928 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 47051928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87816960).

47051928 is an abundant number, since it is smaller than the sum of its proper divisors (128581992).

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

47051928 is a wasteful number, since it uses less digits than its factorization.

47051928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 47051928 is about 6859.4407935341. The cubic root of 47051928 is about 361.0154662741.

The spelling of 47051928 in words is "forty-seven million, fifty-one thousand, nine hundred twenty-eight".