3840253 has 2 divisors, whose sum is σ = 3840254. Its totient is φ = 3840252.

The previous prime is 3840227. The next prime is 3840257. The reversal of 3840253 is 3520483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3829849 + 10404 = 1957^2 + 102^2 .

It is an emirp because it is prime and its reverse (3520483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3840253 - 2¹³ = 3832061 is a prime.

3840253 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3840257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1920126 + 1920127.

It is an arithmetic number, because the mean of its divisors is an integer number (1920127).

Almost surely, 2^3840253 is an apocalyptic number.

It is an amenable number.

3840253 is a deficient number, since it is larger than the sum of its proper divisors (1).

3840253 is an equidigital number, since it uses as much as digits as its factorization.

3840253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 3840253 is about 1959.6563474242. The cubic root of 3840253 is about 156.5981446737.

The spelling of 3840253 in words is "three million, eight hundred forty thousand, two hundred fifty-three".