3725578889 has 4 divisors (see below), whose sum is σ = 3726393924. Its totient is φ = 3724763856.

The previous prime is 3725578859. The next prime is 3725578903. The reversal of 3725578889 is 9888755273.

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

It can be written as a sum of positive squares in 2 ways, for example, as 733488889 + 2992090000 = 27083^2 + 54700^2 .

It is a cyclic number.

It is not a de Polignac number, because 3725578889 - 2¹⁶ = 3725513353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3725578859) 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, 400622 + ... + 409815.

It is an arithmetic number, because the mean of its divisors is an integer number (931598481).

Almost surely, 2^3725578889 is an apocalyptic number.

It is an amenable number.

3725578889 is a deficient number, since it is larger than the sum of its proper divisors (815035).

3725578889 is an equidigital number, since it uses as much as digits as its factorization.

3725578889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815034.

The product of its digits is 33868800, while the sum is 62.

The square root of 3725578889 is about 61037.5203379036. The cubic root of 3725578889 is about 1550.2363689476.

The spelling of 3725578889 in words is "three billion, seven hundred twenty-five million, five hundred seventy-eight thousand, eight hundred eighty-nine".