4102989 has 24 divisors (see below), whose sum is σ = 6128640. Its totient is φ = 2439360.

The previous prime is 4102979. The next prime is 4102991. The reversal of 4102989 is 9892014.

It is not a de Polignac number, because 4102989 - 2⁵ = 4102957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102909) 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, 32244 + ... + 32370.

It is an arithmetic number, because the mean of its divisors is an integer number (255360).

Almost surely, 2^4102989 is an apocalyptic number.

It is an amenable number.

4102989 is a deficient number, since it is larger than the sum of its proper divisors (2025651).

4102989 is a wasteful number, since it uses less digits than its factorization.

4102989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 4102989 is about 2025.5836196020. The cubic root of 4102989 is about 160.0909508940.

The spelling of 4102989 in words is "four million, one hundred two thousand, nine hundred eighty-nine".