3971417 has 4 divisors (see below), whose sum is σ = 4002816. Its totient is φ = 3940020.

The previous prime is 3971413. The next prime is 3971423. The reversal of 3971417 is 7141793.

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: 7141793 = 2617 ⋅2729.

It is a cyclic number.

It is not a de Polignac number, because 3971417 - 2² = 3971413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3971411) 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, 15509 + ... + 15762.

It is an arithmetic number, because the mean of its divisors is an integer number (1000704).

Almost surely, 2^3971417 is an apocalyptic number.

It is an amenable number.

3971417 is a deficient number, since it is larger than the sum of its proper divisors (31399).

3971417 is a wasteful number, since it uses less digits than its factorization.

3971417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31398.

The product of its digits is 5292, while the sum is 32.

The square root of 3971417 is about 1992.8414387502. The cubic root of 3971417 is about 158.3610952859.

The spelling of 3971417 in words is "three million, nine hundred seventy-one thousand, four hundred seventeen".