3943417 has 4 divisors (see below), whose sum is σ = 4070656. Its totient is φ = 3816180.

The previous prime is 3943409. The next prime is 3943427. The reversal of 3943417 is 7143493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3943417 - 2³ = 3943409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 127207 = 3943417 / (3 + 9 + 4 + 3 + 4 + 1 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3943427) 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, 63573 + ... + 63634.

It is an arithmetic number, because the mean of its divisors is an integer number (1017664).

Almost surely, 2^3943417 is an apocalyptic number.

It is an amenable number.

3943417 is a deficient number, since it is larger than the sum of its proper divisors (127239).

3943417 is a wasteful number, since it uses less digits than its factorization.

3943417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127238.

The product of its digits is 9072, while the sum is 31.

The square root of 3943417 is about 1985.8038674552. The cubic root of 3943417 is about 157.9880485539.

The spelling of 3943417 in words is "three million, nine hundred forty-three thousand, four hundred seventeen".