4005898 has 8 divisors (see below), whose sum is σ = 6471108. Its totient is φ = 1848864.

The previous prime is 4005893. The next prime is 4005901. The reversal of 4005898 is 8985004.

It can be written as a sum of positive squares in 2 ways, for example, as 2845969 + 1159929 = 1687^2 + 1077^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4005893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77011 + ... + 77062.

Almost surely, 2^4005898 is an apocalyptic number.

4005898 is a deficient number, since it is larger than the sum of its proper divisors (2465210).

4005898 is a wasteful number, since it uses less digits than its factorization.

4005898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154088.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 4005898 is about 2001.4739568628. The cubic root of 4005898 is about 158.8180876427.

The spelling of 4005898 in words is "four million, five thousand, eight hundred ninety-eight".