3971448 has 48 divisors (see below), whose sum is σ = 11586120. Its totient is φ = 1221696.

The previous prime is 3971431. The next prime is 3971459. The reversal of 3971448 is 8441793.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1186 + ... + 3057.

Almost surely, 2^3971448 is an apocalyptic number.

It is an amenable number.

3971448 is an abundant number, since it is smaller than the sum of its proper divisors (7614672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3971448 is a wasteful number, since it uses less digits than its factorization.

3971448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268 (or 4261 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3971448 is about 1992.8492165741. The cubic root of 3971448 is about 158.3615073287.

The spelling of 3971448 in words is "three million, nine hundred seventy-one thousand, four hundred forty-eight".