5721732 has 48 divisors (see below), whose sum is σ = 15321600. Its totient is φ = 1844640.

The previous prime is 5721719. The next prime is 5721743. The reversal of 5721732 is 2371275.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 5721696 and 5721705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494 + ... + 4202.

It is an arithmetic number, because the mean of its divisors is an integer number (319200).

Almost surely, 2^5721732 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 5721732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7660800).

5721732 is an abundant number, since it is smaller than the sum of its proper divisors (9599868).

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

5721732 is a wasteful number, since it uses less digits than its factorization.

5721732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753 (or 1745 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 5721732 is about 2392.0142140046. The cubic root of 5721732 is about 178.8583296921.

It can be divided in two parts, 572 and 1732, that added together give a square (2304 = 48²).

The spelling of 5721732 in words is "five million, seven hundred twenty-one thousand, seven hundred thirty-two".