3969081 has 20 divisors (see below), whose sum is σ = 6243600. Its totient is φ = 2505816.

The previous prime is 3969071. The next prime is 3969137. The reversal of 3969081 is 1809693.

It is not a de Polignac number, because 3969081 - 2¹³ = 3960889 is a prime.

It is a super-2 number, since 2×3969081² = 31507207969122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3969001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 250 + ... + 2828.

It is an arithmetic number, because the mean of its divisors is an integer number (312180).

Almost surely, 2^3969081 is an apocalyptic number.

It is an amenable number.

3969081 is a deficient number, since it is larger than the sum of its proper divisors (2274519).

3969081 is a wasteful number, since it uses less digits than its factorization.

3969081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 3969081 is about 1992.2552547302. The cubic root of 3969081 is about 158.3300396976.

The spelling of 3969081 in words is "three million, nine hundred sixty-nine thousand, eighty-one".