3993345 has 12 divisors (see below), whose sum is σ = 6921876. Its totient is φ = 2129760.

The previous prime is 3993343. The next prime is 3993377. The reversal of 3993345 is 5433993.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1140624 + 2852721 = 1068^2 + 1689^2 .

It is not a de Polignac number, because 3993345 - 2¹ = 3993343 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (3993343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44326 + ... + 44415.

It is an arithmetic number, because the mean of its divisors is an integer number (576823).

Almost surely, 2^3993345 is an apocalyptic number.

It is an amenable number.

3993345 is a deficient number, since it is larger than the sum of its proper divisors (2928531).

3993345 is a wasteful number, since it uses less digits than its factorization.

3993345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88752 (or 88749 counting only the distinct ones).

The product of its digits is 43740, while the sum is 36.

The square root of 3993345 is about 1998.3355574077. The cubic root of 3993345 is about 158.6520217124.

The spelling of 3993345 in words is "three million, nine hundred ninety-three thousand, three hundred forty-five".