3925477139 has 4 divisors (see below), whose sum is σ = 3947165040. Its totient is φ = 3903789240.

The previous prime is 3925477109. The next prime is 3925477151. The reversal of 3925477139 is 9317745293.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3925477139 - 2¹⁶ = 3925411603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3925477109) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 10843679 + ... + 10844040.

It is an arithmetic number, because the mean of its divisors is an integer number (986791260).

Almost surely, 2^3925477139 is an apocalyptic number.

3925477139 is a deficient number, since it is larger than the sum of its proper divisors (21687901).

3925477139 is a wasteful number, since it uses less digits than its factorization.

3925477139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21687900.

The product of its digits is 1428840, while the sum is 50.

The square root of 3925477139 is about 62653.6282987665. The cubic root of 3925477139 is about 1577.4810499338.

The spelling of 3925477139 in words is "three billion, nine hundred twenty-five million, four hundred seventy-seven thousand, one hundred thirty-nine".