3946591 has 8 divisors (see below), whose sum is σ = 4320000. Its totient is φ = 3575640.

The previous prime is 3946589. The next prime is 3946597. The reversal of 3946591 is 1956493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3946591 - 2¹ = 3946589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3946591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5130 + ... + 5848.

It is an arithmetic number, because the mean of its divisors is an integer number (540000).

Almost surely, 2^3946591 is an apocalyptic number.

3946591 is a deficient number, since it is larger than the sum of its proper divisors (373409).

3946591 is a wasteful number, since it uses less digits than its factorization.

3946591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229.

The product of its digits is 29160, while the sum is 37.

The square root of 3946591 is about 1986.6028792892. The cubic root of 3946591 is about 158.0304246276.

The spelling of 3946591 in words is "three million, nine hundred forty-six thousand, five hundred ninety-one".