3943465 has 16 divisors (see below), whose sum is σ = 5038848. Its totient is φ = 2956096.

The previous prime is 3943451. The next prime is 3943481. The reversal of 3943465 is 5643493.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3943465 - 2¹³ = 3935273 is a prime.

It is a Duffinian number.

3943465 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3943465.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5772 + ... + 6418.

It is an arithmetic number, because the mean of its divisors is an integer number (314928).

Almost surely, 2^3943465 is an apocalyptic number.

It is an amenable number.

3943465 is a deficient number, since it is larger than the sum of its proper divisors (1095383).

3943465 is a wasteful number, since it uses less digits than its factorization.

3943465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its digits is 38880, while the sum is 34.

The square root of 3943465 is about 1985.8159532041. The cubic root of 3943465 is about 157.9886895712.

The spelling of 3943465 in words is "three million, nine hundred forty-three thousand, four hundred sixty-five".