5765921 has 4 divisors (see below), whose sum is σ = 6589632. Its totient is φ = 4942212.

The previous prime is 5765891. The next prime is 5765933. The reversal of 5765921 is 1295675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5765921 - 2⁶ = 5765857 is a prime.

It is a d-powerful number, because it can be written as 5² + 7⁸ + 6² + 5² + 9 + 2¹⁰ + 1 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5765951) 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, 411845 + ... + 411858.

It is an arithmetic number, because the mean of its divisors is an integer number (1647408).

Almost surely, 2^5765921 is an apocalyptic number.

It is an amenable number.

5765921 is a deficient number, since it is larger than the sum of its proper divisors (823711).

5765921 is an equidigital number, since it uses as much as digits as its factorization.

5765921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823710.

The product of its digits is 18900, while the sum is 35.

The square root of 5765921 is about 2401.2332248243. The cubic root of 5765921 is about 179.3175910444.

The spelling of 5765921 in words is "five million, seven hundred sixty-five thousand, nine hundred twenty-one".