3976977389 has 32 divisors (see below), whose sum is σ = 5002905600. Its totient is φ = 3071217600.

The previous prime is 3976977373. The next prime is 3976977397. The reversal of 3976977389 is 9837796793.

It is not a de Polignac number, because 3976977389 - 2⁴ = 3976977373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3976977889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7063622 + ... + 7064184.

It is an arithmetic number, because the mean of its divisors is an integer number (156340800).

Almost surely, 2^3976977389 is an apocalyptic number.

It is an amenable number.

3976977389 is a deficient number, since it is larger than the sum of its proper divisors (1025928211).

3976977389 is a wasteful number, since it uses less digits than its factorization.

3976977389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241.

The product of its digits is 108020304, while the sum is 68.

The square root of 3976977389 is about 63063.2808296555. The cubic root of 3976977389 is about 1584.3496805039.

The spelling of 3976977389 in words is "three billion, nine hundred seventy-six million, nine hundred seventy-seven thousand, three hundred eighty-nine".