3979433405 has 8 divisors (see below), whose sum is σ = 4783599672. Its totient is φ = 3178027008.

The previous prime is 3979433401. The next prime is 3979433407. The reversal of 3979433405 is 5043349793.

It can be written as a sum of positive squares in 4 ways, for example, as 2672683204 + 1306750201 = 51698^2 + 36149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3979433405 - 2² = 3979433401 is a prime.

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 3979433405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979433401) 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 7 ways as a sum of consecutive naturals, for example, 686792 + ... + 692561.

It is an arithmetic number, because the mean of its divisors is an integer number (597949959).

Almost surely, 2^3979433405 is an apocalyptic number.

It is an amenable number.

3979433405 is a deficient number, since it is larger than the sum of its proper divisors (804166267).

3979433405 is a wasteful number, since it uses less digits than its factorization.

3979433405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379935.

The product of its (nonzero) digits is 1224720, while the sum is 47.

The square root of 3979433405 is about 63082.7504552552. The cubic root of 3979433405 is about 1584.6757562349.

The spelling of 3979433405 in words is "three billion, nine hundred seventy-nine million, four hundred thirty-three thousand, four hundred five".