4893891 has 4 divisors (see below), whose sum is σ = 6525192. Its totient is φ = 3262592.

The previous prime is 4893869. The next prime is 4893899. The reversal of 4893891 is 1983984.

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 4893891 - 2⁶ = 4893827 is a prime.

It is a D-number.

4893891 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4893899) 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, 815646 + ... + 815651.

It is an arithmetic number, because the mean of its divisors is an integer number (1631298).

Almost surely, 2^4893891 is an apocalyptic number.

4893891 is a deficient number, since it is larger than the sum of its proper divisors (1631301).

4893891 is a wasteful number, since it uses less digits than its factorization.

4893891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631300.

The product of its digits is 62208, while the sum is 42.

The square root of 4893891 is about 2212.2140493180. The cubic root of 4893891 is about 169.7793099384.

It can be divided in two parts, 48 and 93891, that added together give a palindrome (93939).

The spelling of 4893891 in words is "four million, eight hundred ninety-three thousand, eight hundred ninety-one".