5721746 has 8 divisors (see below), whose sum is σ = 8596044. Its totient is φ = 2856400.

The previous prime is 5721743. The next prime is 5721757. The reversal of 5721746 is 6471275.

It can be written as a sum of positive squares in 2 ways, for example, as 5175625 + 546121 = 2275^2 + 739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5721743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305 + ... + 3396.

Almost surely, 2^5721746 is an apocalyptic number.

5721746 is a deficient number, since it is larger than the sum of its proper divisors (2874298).

5721746 is a wasteful number, since it uses less digits than its factorization.

5721746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476.

The product of its digits is 11760, while the sum is 32.

The square root of 5721746 is about 2392.0171404068. The cubic root of 5721746 is about 178.8584755696.

The spelling of 5721746 in words is "five million, seven hundred twenty-one thousand, seven hundred forty-six".