3879825 has 36 divisors (see below), whose sum is σ = 6852240. Its totient is φ = 1936640.

The previous prime is 3879817. The next prime is 3879829. The reversal of 3879825 is 5289783.

It is not a de Polignac number, because 3879825 - 2³ = 3879817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3879829) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21586 + ... + 21764.

It is an arithmetic number, because the mean of its divisors is an integer number (190340).

Almost surely, 2^3879825 is an apocalyptic number.

It is an amenable number.

3879825 is a deficient number, since it is larger than the sum of its proper divisors (2972415).

3879825 is a wasteful number, since it uses less digits than its factorization.

3879825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 204 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 3879825 is about 1969.7271384636. The cubic root of 3879825 is about 157.1341976732.

Subtracting from 3879825 its sum of digits (42), we obtain a palindrome (3879783).

The spelling of 3879825 in words is "three million, eight hundred seventy-nine thousand, eight hundred twenty-five".