3929977963 has 4 divisors (see below), whose sum is σ = 3931764088. Its totient is φ = 3928191840.

The previous prime is 3929977943. The next prime is 3929977981. The reversal of 3929977963 is 3697799293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3697799293 = 5569 ⋅663997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3929977963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3929977895 and 3929977904.

It is not an unprimeable number, because it can be changed into a prime (3929977913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889758 + ... + 894163.

It is an arithmetic number, because the mean of its divisors is an integer number (982941022).

Almost surely, 2^3929977963 is an apocalyptic number.

3929977963 is a deficient number, since it is larger than the sum of its proper divisors (1786125).

3929977963 is a wasteful number, since it uses less digits than its factorization.

3929977963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786124.

The product of its digits is 34720812, while the sum is 64.

The square root of 3929977963 is about 62689.5363118918. The cubic root of 3929977963 is about 1578.0837157598.

It can be divided in two parts, 392997 and 7963, that added together give a triangular number (400960 = T₈₉₅).

The spelling of 3929977963 in words is "three billion, nine hundred twenty-nine million, nine hundred seventy-seven thousand, nine hundred sixty-three".