3998263 has 2 divisors, whose sum is σ = 3998264. Its totient is φ = 3998262.

The previous prime is 3998261. The next prime is 3998273. The reversal of 3998263 is 3628993.

3998263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3998263 - 2¹ = 3998261 is a prime.

It is a super-2 number, since 2×3998263² = 31972214034338, which contains 22 as substring.

Together with 3998261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3998261) 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 as a sum of consecutive naturals, namely, 1999131 + 1999132.

It is an arithmetic number, because the mean of its divisors is an integer number (1999132).

Almost surely, 2^3998263 is an apocalyptic number.

3998263 is a deficient number, since it is larger than the sum of its proper divisors (1).

3998263 is an equidigital number, since it uses as much as digits as its factorization.

3998263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 3998263 is about 1999.5657028465. The cubic root of 3998263 is about 158.7171242398.

The spelling of 3998263 in words is "three million, nine hundred ninety-eight thousand, two hundred sixty-three".