3994541 has 16 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 3495168.

The previous prime is 3994537. The next prime is 3994553. The reversal of 3994541 is 1454993.

It is a cyclic number.

It is not a de Polignac number, because 3994541 - 2² = 3994537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994561) 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, 26735 + ... + 26883.

It is an arithmetic number, because the mean of its divisors is an integer number (283500).

Almost surely, 2^3994541 is an apocalyptic number.

It is an amenable number.

3994541 is a deficient number, since it is larger than the sum of its proper divisors (541459).

3994541 is a wasteful number, since it uses less digits than its factorization.

3994541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268.

The product of its digits is 19440, while the sum is 35.

The square root of 3994541 is about 1998.6347840463. The cubic root of 3994541 is about 158.6678588012.

The spelling of 3994541 in words is "three million, nine hundred ninety-four thousand, five hundred forty-one".