3978253 has 2 divisors, whose sum is σ = 3978254. Its totient is φ = 3978252.

The previous prime is 3978229. The next prime is 3978257. The reversal of 3978253 is 3528793.

3978253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3433609 + 544644 = 1853^2 + 738^2 .

It is a cyclic number.

It is not a de Polignac number, because 3978253 - 2⁹ = 3977741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3978257) 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, 1989126 + 1989127.

It is an arithmetic number, because the mean of its divisors is an integer number (1989127).

Almost surely, 2^3978253 is an apocalyptic number.

It is an amenable number.

3978253 is a deficient number, since it is larger than the sum of its proper divisors (1).

3978253 is an equidigital number, since it uses as much as digits as its factorization.

3978253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 3978253 is about 1994.5558402812. Note that the first 3 decimals coincide. The cubic root of 3978253 is about 158.4519055186.

The spelling of 3978253 in words is "three million, nine hundred seventy-eight thousand, two hundred fifty-three".