3875949 has 72 divisors (see below), whose sum is σ = 7682688. Its totient is φ = 1854720.

The previous prime is 3875947. The next prime is 3875951. The reversal of 3875949 is 9495783.

It is an interprime number because it is at equal distance from previous prime (3875947) and next prime (3875951).

It is not a de Polignac number, because 3875949 - 2¹ = 3875947 is a prime.

It is an Ulam number.

3875949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3875947) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 82444 + ... + 82490.

It is an arithmetic number, because the mean of its divisors is an integer number (106704).

Almost surely, 2^3875949 is an apocalyptic number.

It is an amenable number.

3875949 is a deficient number, since it is larger than the sum of its proper divisors (3806739).

3875949 is a wasteful number, since it uses less digits than its factorization.

3875949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 85 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3875949 is about 1968.7429999876. The cubic root of 3875949 is about 157.0818538106.

It can be divided in two parts, 387 and 5949, that added together give a palindrome (6336).

The spelling of 3875949 in words is "three million, eight hundred seventy-five thousand, nine hundred forty-nine".