4105989 has 12 divisors (see below), whose sum is σ = 5949216. Its totient is φ = 2728872.

The previous prime is 4105979. The next prime is 4105999. The reversal of 4105989 is 9895014.

It is an interprime number because it is at equal distance from previous prime (4105979) and next prime (4105999).

It is not a de Polignac number, because 4105989 - 2⁷ = 4105861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4105939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4074 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (495768).

Almost surely, 2^4105989 is an apocalyptic number.

It is an amenable number.

4105989 is a deficient number, since it is larger than the sum of its proper divisors (1843227).

4105989 is a wasteful number, since it uses less digits than its factorization.

4105989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4105989 is about 2026.3240116033. The cubic root of 4105989 is about 160.1299595164.

The spelling of 4105989 in words is "four million, one hundred five thousand, nine hundred eighty-nine".