3975779547 has 6 divisors (see below), whose sum is σ = 5742792692. Its totient is φ = 2650519692.

The previous prime is 3975779501. The next prime is 3975779551. The reversal of 3975779547 is 7459775793.

3975779547 is a `hidden beast` number, since 3 + 9 + 7 + 577 + 9 + 54 + 7 = 666.

It is not a de Polignac number, because 3975779547 - 2¹⁰ = 3975778523 is a prime.

It is a super-3 number, since 3×3975779547³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3975779567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220876633 + ... + 220876650.

Almost surely, 2^3975779547 is an apocalyptic number.

3975779547 is a deficient number, since it is larger than the sum of its proper divisors (1767013145).

3975779547 is a wasteful number, since it uses less digits than its factorization.

3975779547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441753289 (or 441753286 counting only the distinct ones).

The product of its digits is 58344300, while the sum is 63.

The square root of 3975779547 is about 63053.7829713650. The cubic root of 3975779547 is about 1584.1905989560.

The spelling of 3975779547 in words is "three billion, nine hundred seventy-five million, seven hundred seventy-nine thousand, five hundred forty-seven".