47321736 has 128 divisors (see below), whose sum is σ = 152755200. Its totient is φ = 11854080.

The previous prime is 47321731. The next prime is 47321777. The reversal of 47321736 is 63712374.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 47321697 and 47321706.

It is not an unprimeable number, because it can be changed into a prime (47321731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53151 + ... + 54033.

It is an arithmetic number, because the mean of its divisors is an integer number (1193400).

Almost surely, 2^47321736 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 47321736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76377600).

47321736 is an abundant number, since it is smaller than the sum of its proper divisors (105433464).

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

47321736 is a wasteful number, since it uses less digits than its factorization.

47321736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 935 counting only the distinct ones).

The product of its digits is 21168, while the sum is 33.

The square root of 47321736 is about 6879.0795895963. The cubic root of 47321736 is about 361.7042036919.

The spelling of 47321736 in words is "forty-seven million, three hundred twenty-one thousand, seven hundred thirty-six".