3998255 has 4 divisors (see below), whose sum is σ = 4797912. Its totient is φ = 3198600.

The previous prime is 3998249. The next prime is 3998261. The reversal of 3998255 is 5528993.

3998255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3998249) and next prime (3998261).

It is not a de Polignac number, because 3998255 - 2⁶ = 3998191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 399821 + ... + 399830.

It is an arithmetic number, because the mean of its divisors is an integer number (1199478).

Almost surely, 2^3998255 is an apocalyptic number.

3998255 is a deficient number, since it is larger than the sum of its proper divisors (799657).

3998255 is an equidigital number, since it uses as much as digits as its factorization.

3998255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799656.

The product of its digits is 97200, while the sum is 41.

The square root of 3998255 is about 1999.5637024111. The cubic root of 3998255 is about 158.7170183823.

The spelling of 3998255 in words is "three million, nine hundred ninety-eight thousand, two hundred fifty-five".