3943445 has 8 divisors (see below), whose sum is σ = 5162400. Its totient is φ = 2867920.

The previous prime is 3943427. The next prime is 3943451. The reversal of 3943445 is 5443493.

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

It is not a de Polignac number, because 3943445 - 2¹² = 3939349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35795 + ... + 35904.

It is an arithmetic number, because the mean of its divisors is an integer number (645300).

Almost surely, 2^3943445 is an apocalyptic number.

It is an amenable number.

3943445 is a deficient number, since it is larger than the sum of its proper divisors (1218955).

3943445 is a wasteful number, since it uses less digits than its factorization.

3943445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71715.

The product of its digits is 25920, while the sum is 32.

The square root of 3943445 is about 1985.8109174843. The cubic root of 3943445 is about 157.9884224813.

The spelling of 3943445 in words is "three million, nine hundred forty-three thousand, four hundred forty-five".