3998273 has 2 divisors, whose sum is σ = 3998274. Its totient is φ = 3998272.

The previous prime is 3998263. The next prime is 3998299. The reversal of 3998273 is 3728993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3579664 + 418609 = 1892^2 + 647^2 .

It is a cyclic number.

It is not a de Polignac number, because 3998273 - 2⁶ = 3998209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3998273.

It is not a weakly prime, because it can be changed into another prime (3998233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999136 + 1999137.

It is an arithmetic number, because the mean of its divisors is an integer number (1999137).

Almost surely, 2^3998273 is an apocalyptic number.

It is an amenable number.

3998273 is a deficient number, since it is larger than the sum of its proper divisors (1).

3998273 is an equidigital number, since it uses as much as digits as its factorization.

3998273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 41.

The square root of 3998273 is about 1999.5682033879. The cubic root of 3998273 is about 158.7172565614.

The spelling of 3998273 in words is "three million, nine hundred ninety-eight thousand, two hundred seventy-three".