3998830 has 16 divisors (see below), whose sum is σ = 7852464. Its totient is φ = 1454080.

The previous prime is 3998821. The next prime is 3998831. The reversal of 3998830 is 388993.

3998830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18067 + ... + 18286.

It is an arithmetic number, because the mean of its divisors is an integer number (490779).

Almost surely, 2^3998830 is an apocalyptic number.

3998830 is a deficient number, since it is larger than the sum of its proper divisors (3853634).

3998830 is a wasteful number, since it uses less digits than its factorization.

3998830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36371.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3998830 is about 1999.7074786078. The cubic root of 3998830 is about 158.7246265273.

It can be divided in two parts, 399 and 8830, that added together give a palindrome (9229).

The spelling of 3998830 in words is "three million, nine hundred ninety-eight thousand, eight hundred thirty".