5721849 has 12 divisors (see below), whose sum is σ = 9445696. Its totient is φ = 3269592.

The previous prime is 5721841. The next prime is 5721851. The reversal of 5721849 is 9481275.

5721849 is a `hidden beast` number, since 572 + 1 + 84 + 9 = 666.

It is not a de Polignac number, because 5721849 - 2³ = 5721841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5721841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45349 + ... + 45474.

Almost surely, 2^5721849 is an apocalyptic number.

It is an amenable number.

5721849 is a deficient number, since it is larger than the sum of its proper divisors (3723847).

5721849 is a wasteful number, since it uses less digits than its factorization.

5721849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90836 (or 90833 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 5721849 is about 2392.0386702560. The cubic root of 5721849 is about 178.8595488033.

The spelling of 5721849 in words is "five million, seven hundred twenty-one thousand, eight hundred forty-nine".