5657439 has 8 divisors (see below), whose sum is σ = 7598080. Its totient is φ = 3744216.

The previous prime is 5657429. The next prime is 5657441. The reversal of 5657439 is 9347565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5657439 - 2⁴ = 5657423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5657397 and 5657406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5657429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6367 + ... + 7200.

It is an arithmetic number, because the mean of its divisors is an integer number (949760).

Almost surely, 2^5657439 is an apocalyptic number.

5657439 is a deficient number, since it is larger than the sum of its proper divisors (1940641).

5657439 is a wasteful number, since it uses less digits than its factorization.

5657439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13709.

The product of its digits is 113400, while the sum is 39.

The square root of 5657439 is about 2378.5371554802. The cubic root of 5657439 is about 178.1858829121.

The spelling of 5657439 in words is "five million, six hundred fifty-seven thousand, four hundred thirty-nine".