3967143976 has 16 divisors (see below), whose sum is σ = 7440200640. Its totient is φ = 1983090480.

The previous prime is 3967143941. The next prime is 3967143979. The reversal of 3967143976 is 6793417693.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3967143979) 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, 23886 + ... + 92221.

It is an arithmetic number, because the mean of its divisors is an integer number (465012540).

Almost surely, 2^3967143976 is an apocalyptic number.

It is an amenable number.

3967143976 is a deficient number, since it is larger than the sum of its proper divisors (3473056664).

3967143976 is a wasteful number, since it uses less digits than its factorization.

3967143976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120384 (or 120380 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 55.

The square root of 3967143976 is about 62985.2679283021. The cubic root of 3967143976 is about 1583.0427899114.

The spelling of 3967143976 in words is "three billion, nine hundred sixty-seven million, one hundred forty-three thousand, nine hundred seventy-six".