3967995276 has 240 divisors, whose sum is σ = 12171430656. Its totient is φ = 1103953536.

The previous prime is 3967995233. The next prime is 3967995341. The reversal of 3967995276 is 6725997693.

3967995276 is a `hidden beast` number, since 39 + 6 + 79 + 9 + 527 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 20142010 + ... + 20142206.

Almost surely, 2^3967995276 is an apocalyptic number.

3967995276 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3967995276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6085715328).

3967995276 is an abundant number, since it is smaller than the sum of its proper divisors (8203435380).

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

3967995276 is a wasteful number, since it uses less digits than its factorization.

3967995276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 399 counting only the distinct ones).

The product of its digits is 38578680, while the sum is 63.

The square root of 3967995276 is about 62992.0254952958. The cubic root of 3967995276 is about 1583.1560156098.

The spelling of 3967995276 in words is "three billion, nine hundred sixty-seven million, nine hundred ninety-five thousand, two hundred seventy-six".