3947486448 has 40 divisors (see below), whose sum is σ = 10291243600. Its totient is φ = 1303755264.

The previous prime is 3947486443. The next prime is 3947486483. The reversal of 3947486448 is 8446847493.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947486443) 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, 372013 + ... + 382476.

It is an arithmetic number, because the mean of its divisors is an integer number (257281090).

Almost surely, 2^3947486448 is an apocalyptic number.

It is an amenable number.

3947486448 is an abundant number, since it is smaller than the sum of its proper divisors (6343757152).

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

3947486448 is a wasteful number, since it uses less digits than its factorization.

3947486448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754609 (or 754603 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 57.

The square root of 3947486448 is about 62829.0255216488. The cubic root of 3947486448 is about 1580.4237564445.

The spelling of 3947486448 in words is "three billion, nine hundred forty-seven million, four hundred eighty-six thousand, four hundred forty-eight".