3989417 has 4 divisors (see below), whose sum is σ = 4010496. Its totient is φ = 3968340.

The previous prime is 3989413. The next prime is 3989429. The reversal of 3989417 is 7149893.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7149893 = 137 ⋅52189.

It is a cyclic number.

It is not a de Polignac number, because 3989417 - 2² = 3989413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989413) 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, 10253 + ... + 10634.

It is an arithmetic number, because the mean of its divisors is an integer number (1002624).

Almost surely, 2^3989417 is an apocalyptic number.

It is an amenable number.

3989417 is a deficient number, since it is larger than the sum of its proper divisors (21079).

3989417 is a wasteful number, since it uses less digits than its factorization.

3989417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21078.

The product of its digits is 54432, while the sum is 41.

The square root of 3989417 is about 1997.3524976829. The cubic root of 3989417 is about 158.5999860062.

The spelling of 3989417 in words is "three million, nine hundred eighty-nine thousand, four hundred seventeen".