5657489 has 2 divisors, whose sum is σ = 5657490. Its totient is φ = 5657488.

The previous prime is 5657461. The next prime is 5657503. The reversal of 5657489 is 9847565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5326864 + 330625 = 2308^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5657489 is a prime.

It is not a weakly prime, because it can be changed into another prime (5657429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828744 + 2828745.

It is an arithmetic number, because the mean of its divisors is an integer number (2828745).

Almost surely, 2^5657489 is an apocalyptic number.

It is an amenable number.

5657489 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657489 is an equidigital number, since it uses as much as digits as its factorization.

5657489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 44.

The square root of 5657489 is about 2378.5476661190. The cubic root of 5657489 is about 178.1864078415.

The spelling of 5657489 in words is "five million, six hundred fifty-seven thousand, four hundred eighty-nine".