3945533 has 4 divisors (see below), whose sum is σ = 3953628. Its totient is φ = 3937440.

The previous prime is 3945527. The next prime is 3945607. The reversal of 3945533 is 3355493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2951524 + 994009 = 1718^2 + 997^2 .

It is a cyclic number.

It is not a de Polignac number, because 3945533 - 2¹⁰ = 3944509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3945533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3266 + ... + 4307.

It is an arithmetic number, because the mean of its divisors is an integer number (988407).

Almost surely, 2^3945533 is an apocalyptic number.

It is an amenable number.

3945533 is a deficient number, since it is larger than the sum of its proper divisors (8095).

3945533 is an equidigital number, since it uses as much as digits as its factorization.

3945533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094.

The product of its digits is 24300, while the sum is 32.

The square root of 3945533 is about 1986.3365777229. The cubic root of 3945533 is about 158.0163017950.

The spelling of 3945533 in words is "three million, nine hundred forty-five thousand, five hundred thirty-three".