4461891 has 24 divisors (see below), whose sum is σ = 7004160. Its totient is φ = 2518992.

The previous prime is 4461889. The next prime is 4461893. The reversal of 4461891 is 1981644.

It is an interprime number because it is at equal distance from previous prime (4461889) and next prime (4461893).

It is not a de Polignac number, because 4461891 - 2¹ = 4461889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4461893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18550 + ... + 18788.

It is an arithmetic number, because the mean of its divisors is an integer number (291840).

Almost surely, 2^4461891 is an apocalyptic number.

4461891 is a deficient number, since it is larger than the sum of its proper divisors (2542269).

4461891 is a wasteful number, since it uses less digits than its factorization.

4461891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 376 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 4461891 is about 2112.3188679742. The cubic root of 4461891 is about 164.6289919291.

The spelling of 4461891 in words is "four million, four hundred sixty-one thousand, eight hundred ninety-one".