5018891 has 2 divisors, whose sum is σ = 5018892. Its totient is φ = 5018890.

The previous prime is 5018887. The next prime is 5018911. The reversal of 5018891 is 1988105.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5018891 - 2² = 5018887 is a prime.

It is not a weakly prime, because it can be changed into another prime (5018821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2509445 + 2509446.

It is an arithmetic number, because the mean of its divisors is an integer number (2509446).

Almost surely, 2^5018891 is an apocalyptic number.

5018891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5018891 is an equidigital number, since it uses as much as digits as its factorization.

5018891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 5018891 is about 2240.2881511091. The cubic root of 5018891 is about 171.2126783890.

The spelling of 5018891 in words is "five million, eighteen thousand, eight hundred ninety-one".