5019891 has 4 divisors (see below), whose sum is σ = 6693192. Its totient is φ = 3346592.

The previous prime is 5019877. The next prime is 5019899. The reversal of 5019891 is 1989105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5019891 - 2¹⁴ = 5003507 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5019899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836646 + ... + 836651.

It is an arithmetic number, because the mean of its divisors is an integer number (1673298).

Almost surely, 2^5019891 is an apocalyptic number.

5019891 is a deficient number, since it is larger than the sum of its proper divisors (1673301).

5019891 is a wasteful number, since it uses less digits than its factorization.

5019891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673300.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 5019891 is about 2240.5113255683. The cubic root of 5019891 is about 171.2240488496.

The spelling of 5019891 in words is "five million, nineteen thousand, eight hundred ninety-one".