5697891 has 32 divisors (see below), whose sum is σ = 9216000. Its totient is φ = 3465504.

The previous prime is 5697883. The next prime is 5697899. The reversal of 5697891 is 1987965.

5697891 is a `hidden beast` number, since 569 + 7 + 89 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (5697883) and next prime (5697899).

It is not a de Polignac number, because 5697891 - 2³ = 5697883 is a prime.

5697891 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5697899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14686 + ... + 15068.

It is an arithmetic number, because the mean of its divisors is an integer number (288000).

Almost surely, 2^5697891 is an apocalyptic number.

5697891 is a deficient number, since it is larger than the sum of its proper divisors (3518109).

5697891 is a wasteful number, since it uses less digits than its factorization.

5697891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 434 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 5697891 is about 2387.0255549533. The cubic root of 5697891 is about 178.6095648225.

The spelling of 5697891 in words is "five million, six hundred ninety-seven thousand, eight hundred ninety-one".