5757921 has 24 divisors (see below), whose sum is σ = 9271080. Its totient is φ = 3419136.

The previous prime is 5757919. The next prime is 5757929. The reversal of 5757921 is 1297575.

5757921 is a nontrivial binomial coefficient, being equal to C(3394, 2).

It can be written as a sum of positive squares in 4 ways, for example, as 1347921 + 4410000 = 1161^2 + 2100^2 .

It is not a de Polignac number, because 5757921 - 2¹ = 5757919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5757929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2545 + ... + 4241.

It is an arithmetic number, because the mean of its divisors is an integer number (386295).

Almost surely, 2^5757921 is an apocalyptic number.

5757921 is the 3393-rd triangular number and also the 1697-th hexagonal number.

It is an amenable number.

5757921 is a deficient number, since it is larger than the sum of its proper divisors (3513159).

5757921 is a wasteful number, since it uses less digits than its factorization.

5757921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745 (or 1742 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

The square root of 5757921 is about 2399.5668359102. The cubic root of 5757921 is about 179.2346205067.

It can be divided in two parts, 57579 and 21, that added together give a square (57600 = 240²).

The spelling of 5757921 in words is "five million, seven hundred fifty-seven thousand, nine hundred twenty-one".