3861908325 has 72 divisors (see below), whose sum is σ = 7652563776. Its totient is φ = 1845984000.

The previous prime is 3861908321. The next prime is 3861908333. The reversal of 3861908325 is 5238091683.

It is a happy number.

3861908325 is a `hidden beast` number, since 3 + 8 + 619 + 0 + 8 + 3 + 25 = 666.

It is not a de Polignac number, because 3861908325 - 2² = 3861908321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861908321) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 164737 + ... + 186713.

It is an arithmetic number, because the mean of its divisors is an integer number (106285608).

Almost surely, 2^3861908325 is an apocalyptic number.

It is an amenable number.

3861908325 is a deficient number, since it is larger than the sum of its proper divisors (3790655451).

3861908325 is a wasteful number, since it uses less digits than its factorization.

3861908325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22075 (or 22067 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 3861908325 is about 62144.2541591739. The cubic root of 3861908325 is about 1568.9194730219.

The spelling of 3861908325 in words is "three billion, eight hundred sixty-one million, nine hundred eight thousand, three hundred twenty-five".