3891366 has 24 divisors (see below), whose sum is σ = 8592480. Its totient is φ = 1272336.

The previous prime is 3891359. The next prime is 3891379. The reversal of 3891366 is 6631983.

It is a happy number.

3891366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 3¹² + 8⁵ + 9⁴ + 1 + 3¹³ + 6⁶ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3891366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1086 + ... + 2993.

It is an arithmetic number, because the mean of its divisors is an integer number (358020).

Almost surely, 2^3891366 is an apocalyptic number.

3891366 is an abundant number, since it is smaller than the sum of its proper divisors (4701114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3891366 is a wasteful number, since it uses less digits than its factorization.

3891366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140 (or 4137 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 3891366 is about 1972.6545566824. The cubic root of 3891366 is about 157.2898482157.

The spelling of 3891366 in words is "three million, eight hundred ninety-one thousand, three hundred sixty-six".