3975839028 has 216 divisors, whose sum is σ = 12459879432. Its totient is φ = 1062125568.

The previous prime is 3975839017. The next prime is 3975839047. The reversal of 3975839028 is 8209385793.

It is a happy number.

3975839028 is a `hidden beast` number, since 39 + 7 + 583 + 9 + 0 + 28 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1941107364 + 2034731664 = 44058^2 + 45108^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5907300 + ... + 5907972.

It is an arithmetic number, because the mean of its divisors is an integer number (57684627).

Almost surely, 2^3975839028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3975839028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6229939716).

3975839028 is an abundant number, since it is smaller than the sum of its proper divisors (8484040404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3975839028 is a wasteful number, since it uses less digits than its factorization.

3975839028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 3975839028 is about 63054.2546383668. The cubic root of 3975839028 is about 1584.1984991904.

The spelling of 3975839028 in words is "three billion, nine hundred seventy-five million, eight hundred thirty-nine thousand, twenty-eight".