47071232 has 90 divisors (see below), whose sum is σ = 107934498. Its totient is φ = 20447232.

The previous prime is 47071207. The next prime is 47071247. The reversal of 47071232 is 23217074.

It can be written as a sum of positive squares in 3 ways, for example, as 1048576 + 46022656 = 1024^2 + 6784^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2768888 + ... + 2768904.

Almost surely, 2^47071232 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 47071232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53967249).

47071232 is an abundant number, since it is smaller than the sum of its proper divisors (60863266).

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

47071232 is an equidigital number, since it uses as much as digits as its factorization.

47071232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 32 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 47071232 is about 6860.8477610278. The cubic root of 47071232 is about 361.0648308097.

The spelling of 47071232 in words is "forty-seven million, seventy-one thousand, two hundred thirty-two".