3993545 has 8 divisors (see below), whose sum is σ = 4850496. Its totient is φ = 3156016.

The previous prime is 3993527. The next prime is 3993547. The reversal of 3993545 is 5453993.

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 3993545 - 2⁶ = 3993481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3993499 and 3993508.

It is not an unprimeable number, because it can be changed into a prime (3993547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4397 + ... + 5226.

It is an arithmetic number, because the mean of its divisors is an integer number (606312).

Almost surely, 2^3993545 is an apocalyptic number.

It is an amenable number.

3993545 is a deficient number, since it is larger than the sum of its proper divisors (856951).

3993545 is an equidigital number, since it uses as much as digits as its factorization.

3993545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9711.

The product of its digits is 72900, while the sum is 38.

The square root of 3993545 is about 1998.3855984269. The cubic root of 3993545 is about 158.6546702752.

The spelling of 3993545 in words is "three million, nine hundred ninety-three thousand, five hundred forty-five".