3979945832 has 8 divisors (see below), whose sum is σ = 7462398450. Its totient is φ = 1989972912.

The previous prime is 3979945817. The next prime is 3979945847. The reversal of 3979945832 is 2385499793.

It is an interprime number because it is at equal distance from previous prime (3979945817) and next prime (3979945847).

It can be written as a sum of positive squares in only one way, i.e., 2969596036 + 1010349796 = 54494^2 + 31786^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248746607 + ... + 248746622.

Almost surely, 2^3979945832 is an apocalyptic number.

It is an amenable number.

3979945832 is a deficient number, since it is larger than the sum of its proper divisors (3482452618).

3979945832 is a wasteful number, since it uses less digits than its factorization.

3979945832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497493235 (or 497493231 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 59.

The square root of 3979945832 is about 63086.8118706279. The cubic root of 3979945832 is about 1584.7437722654.

The spelling of 3979945832 in words is "three billion, nine hundred seventy-nine million, nine hundred forty-five thousand, eight hundred thirty-two".