5721206 has 8 divisors (see below), whose sum is σ = 8598744. Its totient is φ = 2854960.

The previous prime is 5721203. The next prime is 5721211. The reversal of 5721206 is 6021275.

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

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415 + ... + 3666.

It is an arithmetic number, because the mean of its divisors is an integer number (1074843).

Almost surely, 2^5721206 is an apocalyptic number.

5721206 is a deficient number, since it is larger than the sum of its proper divisors (2877538).

5721206 is a wasteful number, since it uses less digits than its factorization.

5721206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 5721206 is about 2391.9042622981. The cubic root of 5721206 is about 178.8528486965.

The spelling of 5721206 in words is "five million, seven hundred twenty-one thousand, two hundred six".