3917289 has 8 divisors (see below), whose sum is σ = 5301280. Its totient is φ = 2572416.

The previous prime is 3917281. The next prime is 3917297. The reversal of 3917289 is 9827193.

It is an interprime number because it is at equal distance from previous prime (3917281) and next prime (3917297).

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

It is not a de Polignac number, because 3917289 - 2³ = 3917281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3917281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9544 + ... + 9945.

It is an arithmetic number, because the mean of its divisors is an integer number (662660).

Almost surely, 2^3917289 is an apocalyptic number.

It is an amenable number.

3917289 is a deficient number, since it is larger than the sum of its proper divisors (1383991).

3917289 is a wasteful number, since it uses less digits than its factorization.

3917289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19559.

The product of its digits is 27216, while the sum is 39.

The square root of 3917289 is about 1979.2142380248. The cubic root of 3917289 is about 157.6383465700.

The spelling of 3917289 in words is "three million, nine hundred seventeen thousand, two hundred eighty-nine".