4916891 has 4 divisors (see below), whose sum is σ = 5619312. Its totient is φ = 4214472.

The previous prime is 4916887. The next prime is 4916909. The reversal of 4916891 is 1986194.

It is a happy number.

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 4916891 - 2² = 4916887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4916831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351200 + ... + 351213.

It is an arithmetic number, because the mean of its divisors is an integer number (1404828).

Almost surely, 2^4916891 is an apocalyptic number.

4916891 is a deficient number, since it is larger than the sum of its proper divisors (702421).

4916891 is an equidigital number, since it uses as much as digits as its factorization.

4916891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702420.

The product of its digits is 15552, while the sum is 38.

The square root of 4916891 is about 2217.4063678090. The cubic root of 4916891 is about 170.0448670502.

The spelling of 4916891 in words is "four million, nine hundred sixteen thousand, eight hundred ninety-one".