47321472 has 128 divisors (see below), whose sum is σ = 145411200. Its totient is φ = 13475840.

The previous prime is 47321471. The next prime is 47321473. The reversal of 47321472 is 27412374.

It is an interprime number because it is at equal distance from previous prime (47321471) and next prime (47321473).

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47321471) 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, 71479 + ... + 72137.

It is an arithmetic number, because the mean of its divisors is an integer number (1136025).

Almost surely, 2^47321472 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 47321472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72705600).

47321472 is an abundant number, since it is smaller than the sum of its proper divisors (98089728).

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

47321472 is a wasteful number, since it uses less digits than its factorization.

47321472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 692 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 47321472 is about 6879.0604009559. The cubic root of 47321472 is about 361.7035310617.

It can be divided in two parts, 473 and 21472, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 47321472 in words is "forty-seven million, three hundred twenty-one thousand, four hundred seventy-two".