5648891 has 2 divisors, whose sum is σ = 5648892. Its totient is φ = 5648890.

The previous prime is 5648873. The next prime is 5648893. The reversal of 5648891 is 1988465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5648891 - 2²² = 1454587 is a prime.

Together with 5648893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5648893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2824445 + 2824446.

It is an arithmetic number, because the mean of its divisors is an integer number (2824446).

Almost surely, 2^5648891 is an apocalyptic number.

5648891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5648891 is an equidigital number, since it uses as much as digits as its factorization.

5648891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 41.

The square root of 5648891 is about 2376.7395734493. The cubic root of 5648891 is about 178.0960954843.

The spelling of 5648891 in words is "five million, six hundred forty-eight thousand, eight hundred ninety-one".