3976864847 has 4 divisors (see below), whose sum is σ = 4069350120. Its totient is φ = 3884379576.

The previous prime is 3976864751. The next prime is 3976864861. The reversal of 3976864847 is 7484686793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7484686793 = 4483 ⋅1669571.

It is a cyclic number.

It is not a de Polignac number, because 3976864847 - 2¹⁰ = 3976863823 is a prime.

It is a super-2 number, since 2×3976864847² = 31630908022608666818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3976864847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3976864447) 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, 46242572 + ... + 46242657.

It is an arithmetic number, because the mean of its divisors is an integer number (1017337530).

Almost surely, 2^3976864847 is an apocalyptic number.

3976864847 is a deficient number, since it is larger than the sum of its proper divisors (92485273).

3976864847 is an equidigital number, since it uses as much as digits as its factorization.

3976864847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92485272.

The product of its digits is 48771072, while the sum is 62.

The square root of 3976864847 is about 63062.3885291383. The cubic root of 3976864847 is about 1584.3347355222.

The spelling of 3976864847 in words is "three billion, nine hundred seventy-six million, eight hundred sixty-four thousand, eight hundred forty-seven".