3948217 has 16 divisors (see below), whose sum is σ = 4977280. Its totient is φ = 3048192.

The previous prime is 3948187. The next prime is 3948223. The reversal of 3948217 is 7128493.

It is not a de Polignac number, because 3948217 - 2¹⁹ = 3423929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3948247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3409 + ... + 4417.

It is an arithmetic number, because the mean of its divisors is an integer number (311080).

Almost surely, 2^3948217 is an apocalyptic number.

It is an amenable number.

3948217 is a deficient number, since it is larger than the sum of its proper divisors (1029063).

3948217 is a wasteful number, since it uses less digits than its factorization.

3948217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072.

The product of its digits is 12096, while the sum is 34.

The square root of 3948217 is about 1987.0120784736. The cubic root of 3948217 is about 158.0521245529.

The spelling of 3948217 in words is "three million, nine hundred forty-eight thousand, two hundred seventeen".