5678891 has 6 divisors (see below), whose sum is σ = 5993892. Its totient is φ = 5379660.

The previous prime is 5678873. The next prime is 5678899. The reversal of 5678891 is 1988765.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-5678891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5678899) 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 5 ways as a sum of consecutive naturals, for example, 7505 + ... + 8226.

It is an arithmetic number, because the mean of its divisors is an integer number (998982).

Almost surely, 2^5678891 is an apocalyptic number.

5678891 is a deficient number, since it is larger than the sum of its proper divisors (315001).

5678891 is a wasteful number, since it uses less digits than its factorization.

5678891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15769 (or 15750 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The square root of 5678891 is about 2383.0423831732. The cubic root of 5678891 is about 178.4108152164.

The spelling of 5678891 in words is "five million, six hundred seventy-eight thousand, eight hundred ninety-one".