5857921 has 2 divisors, whose sum is σ = 5857922. Its totient is φ = 5857920.

The previous prime is 5857903. The next prime is 5857937. The reversal of 5857921 is 1297585.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5856400 + 1521 = 2420^2 + 39^2 .

It is a cyclic number.

It is not a de Polignac number, because 5857921 - 2⁹ = 5857409 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5857961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2928960 + 2928961.

It is an arithmetic number, because the mean of its divisors is an integer number (2928961).

Almost surely, 2^5857921 is an apocalyptic number.

It is an amenable number.

5857921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5857921 is an equidigital number, since it uses as much as digits as its factorization.

5857921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 37.

The square root of 5857921 is about 2420.3142357967. The cubic root of 5857921 is about 180.2662828352.

The spelling of 5857921 in words is "five million, eight hundred fifty-seven thousand, nine hundred twenty-one".