3968885 has 4 divisors (see below), whose sum is σ = 4762668. Its totient is φ = 3175104.

The previous prime is 3968873. The next prime is 3968893. The reversal of 3968885 is 5888693.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2745649 + 1223236 = 1657^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 3968885 - 2⁴ = 3968869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396884 + ... + 396893.

It is an arithmetic number, because the mean of its divisors is an integer number (1190667).

Almost surely, 2^3968885 is an apocalyptic number.

It is an amenable number.

3968885 is a deficient number, since it is larger than the sum of its proper divisors (793783).

3968885 is an equidigital number, since it uses as much as digits as its factorization.

3968885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793782.

The product of its digits is 414720, while the sum is 47.

The square root of 3968885 is about 1992.2060636390. The cubic root of 3968885 is about 158.3274334521.

The spelling of 3968885 in words is "three million, nine hundred sixty-eight thousand, eight hundred eighty-five".