5721765 has 16 divisors (see below), whose sum is σ = 10462848. Its totient is φ = 2615616.

The previous prime is 5721757. The next prime is 5721767. The reversal of 5721765 is 5671275.

It is not a de Polignac number, because 5721765 - 2³ = 5721757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721767) 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 15 ways as a sum of consecutive naturals, for example, 27142 + ... + 27351.

It is an arithmetic number, because the mean of its divisors is an integer number (653928).

Almost surely, 2^5721765 is an apocalyptic number.

It is an amenable number.

5721765 is a deficient number, since it is larger than the sum of its proper divisors (4741083).

5721765 is a wasteful number, since it uses less digits than its factorization.

5721765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54508.

The product of its digits is 14700, while the sum is 33.

The square root of 5721765 is about 2392.0211119470. The cubic root of 5721765 is about 178.8586735457.

The spelling of 5721765 in words is "five million, seven hundred twenty-one thousand, seven hundred sixty-five".