3870243 has 24 divisors (see below), whose sum is σ = 6340880. Its totient is φ = 2255040.

The previous prime is 3870239. The next prime is 3870247. The reversal of 3870243 is 3420783.

3870243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3870239) and next prime (3870247).

It is not a de Polignac number, because 3870243 - 2² = 3870239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3870247) 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 in 23 ways as a sum of consecutive naturals, for example, 1353 + ... + 3093.

Almost surely, 2^3870243 is an apocalyptic number.

3870243 is a deficient number, since it is larger than the sum of its proper divisors (2470637).

3870243 is a wasteful number, since it uses less digits than its factorization.

3870243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 3870243 is about 1967.2933182421. The cubic root of 3870243 is about 157.0047329770.

The spelling of 3870243 in words is "three million, eight hundred seventy thousand, two hundred forty-three".