5756391 has 6 divisors (see below), whose sum is σ = 8314800. Its totient is φ = 3837588.

The previous prime is 5756389. The next prime is 5756447. The reversal of 5756391 is 1936575.

It is a happy number.

5756391 is a `hidden beast` number, since 5 + 7 + 563 + 91 = 666.

It is not a de Polignac number, because 5756391 - 2¹ = 5756389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5756321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319791 + ... + 319808.

It is an arithmetic number, because the mean of its divisors is an integer number (1385800).

Almost surely, 2^5756391 is an apocalyptic number.

5756391 is a deficient number, since it is larger than the sum of its proper divisors (2558409).

5756391 is a wasteful number, since it uses less digits than its factorization.

5756391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639605 (or 639602 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 5756391 is about 2399.2480071889. The cubic root of 5756391 is about 179.2187436382.

The spelling of 5756391 in words is "five million, seven hundred fifty-six thousand, three hundred ninety-one".