4093889 has 8 divisors (see below), whose sum is σ = 4355208. Its totient is φ = 3834880.

The previous prime is 4093883. The next prime is 4093897. The reversal of 4093889 is 9883904.

It can be written as a sum of positive squares in 4 ways, for example, as 2455489 + 1638400 = 1567^2 + 1280^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4093889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (4093883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4349 + ... + 5205.

It is an arithmetic number, because the mean of its divisors is an integer number (544401).

Almost surely, 2^4093889 is an apocalyptic number.

It is an amenable number.

4093889 is a deficient number, since it is larger than the sum of its proper divisors (261319).

4093889 is a wasteful number, since it uses less digits than its factorization.

4093889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 4093889 is about 2023.3361065330. The cubic root of 4093889 is about 159.9725082974.

The spelling of 4093889 in words is "four million, ninety-three thousand, eight hundred eighty-nine".