3885129 has 24 divisors (see below), whose sum is σ = 6046560. Its totient is φ = 2395008.

The previous prime is 3885127. The next prime is 3885149. The reversal of 3885129 is 9215883.

It is not a de Polignac number, because 3885129 - 2¹ = 3885127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3885093 and 3885102.

It is not an unprimeable number, because it can be changed into a prime (3885121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10062 + ... + 10440.

It is an arithmetic number, because the mean of its divisors is an integer number (251940).

Almost surely, 2^3885129 is an apocalyptic number.

It is an amenable number.

3885129 is a deficient number, since it is larger than the sum of its proper divisors (2161431).

3885129 is a wasteful number, since it uses less digits than its factorization.

3885129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 466 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 3885129 is about 1971.0730580067. The cubic root of 3885129 is about 157.2057696540.

It can be divided in two parts, 388512 and 9, that added together give a triangular number (388521 = T₈₈₁).

The spelling of 3885129 in words is "three million, eight hundred eighty-five thousand, one hundred twenty-nine".