3985269 has 16 divisors (see below), whose sum is σ = 5644800. Its totient is φ = 2493936.

The previous prime is 3985249. The next prime is 3985277. The reversal of 3985269 is 9625893.

It is not a de Polignac number, because 3985269 - 2⁵ = 3985237 is a prime.

It is a super-2 number, since 2×3985269² = 31764738004722, which contains 22 as substring.

It is a Curzon number.

3985269 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3985269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7672 + ... + 8174.

It is an arithmetic number, because the mean of its divisors is an integer number (352800).

Almost surely, 2^3985269 is an apocalyptic number.

It is an amenable number.

3985269 is a deficient number, since it is larger than the sum of its proper divisors (1659531).

3985269 is a wasteful number, since it uses less digits than its factorization.

3985269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664.

The product of its digits is 116640, while the sum is 42.

The square root of 3985269 is about 1996.3138530802. The cubic root of 3985269 is about 158.5449987836.

The spelling of 3985269 in words is "three million, nine hundred eighty-five thousand, two hundred sixty-nine".