47971572 has 48 divisors (see below), whose sum is σ = 124431552. Its totient is φ = 14260480.

The previous prime is 47971571. The next prime is 47971591. The reversal of 47971572 is 27517974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47971571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3568 + ... + 10424.

It is an arithmetic number, because the mean of its divisors is an integer number (2592324).

Almost surely, 2^47971572 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 47971572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62215776).

47971572 is an abundant number, since it is smaller than the sum of its proper divisors (76459980).

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

47971572 is a wasteful number, since it uses less digits than its factorization.

47971572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6928 (or 6926 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 47971572 is about 6926.1513122368. The cubic root of 47971572 is about 363.3523584198.

The spelling of 47971572 in words is "forty-seven million, nine hundred seventy-one thousand, five hundred seventy-two".