4097989 has 8 divisors (see below), whose sum is σ = 4715648. Its totient is φ = 3488400.

The previous prime is 4097987. The next prime is 4098011. The reversal of 4097989 is 9897904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4097989 - 2¹ = 4097987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4097981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882 + ... + 2995.

It is an arithmetic number, because the mean of its divisors is an integer number (589456).

Almost surely, 2^4097989 is an apocalyptic number.

It is an amenable number.

4097989 is a deficient number, since it is larger than the sum of its proper divisors (617659).

4097989 is a wasteful number, since it uses less digits than its factorization.

4097989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 4097989 is about 2024.3490311703. The cubic root of 4097989 is about 160.0258942466.

The spelling of 4097989 in words is "four million, ninety-seven thousand, nine hundred eighty-nine".