3948447 has 16 divisors (see below), whose sum is σ = 5650560. Its totient is φ = 2444832.

The previous prime is 3948431. The next prime is 3948463. The reversal of 3948447 is 7448493.

It is an interprime number because it is at equal distance from previous prime (3948431) and next prime (3948463).

It is not a de Polignac number, because 3948447 - 2⁴ = 3948431 is a prime.

It is a super-3 number, since 3×3948447³ (a number of 21 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948467) 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, 2368 + ... + 3674.

It is an arithmetic number, because the mean of its divisors is an integer number (353160).

Almost surely, 2^3948447 is an apocalyptic number.

3948447 is a deficient number, since it is larger than the sum of its proper divisors (1702113).

3948447 is a wasteful number, since it uses less digits than its factorization.

3948447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382.

The product of its digits is 96768, while the sum is 39.

The square root of 3948447 is about 1987.0699534742. The cubic root of 3948447 is about 158.0551935570.

The spelling of 3948447 in words is "three million, nine hundred forty-eight thousand, four hundred forty-seven".