4097889 has 6 divisors (see below), whose sum is σ = 5919186. Its totient is φ = 2731920.

The previous prime is 4097879. The next prime is 4097917. The reversal of 4097889 is 9887904.

It can be written as a sum of positive squares in only one way, i.e., 2387025 + 1710864 = 1545^2 + 1308^2 .

It is not a de Polignac number, because 4097889 - 2⁸ = 4097633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4097869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 227652 + ... + 227669.

It is an arithmetic number, because the mean of its divisors is an integer number (986531).

Almost surely, 2^4097889 is an apocalyptic number.

It is an amenable number.

4097889 is a deficient number, since it is larger than the sum of its proper divisors (1821297).

4097889 is a wasteful number, since it uses less digits than its factorization.

4097889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455327 (or 455324 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 4097889 is about 2024.3243317216. The cubic root of 4097889 is about 160.0245925740.

The spelling of 4097889 in words is "four million, ninety-seven thousand, eight hundred eighty-nine".