3988686325 has 12 divisors (see below), whose sum is σ = 5326430788. Its totient is φ = 2945491200.

The previous prime is 3988686323. The next prime is 3988686329. The reversal of 3988686325 is 5236868893.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 846635409 + 3142050916 = 29097^2 + 56054^2 .

It is not a de Polignac number, because 3988686325 - 2¹ = 3988686323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3988686325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988686323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6136116 + ... + 6136765.

Almost surely, 2^3988686325 is an apocalyptic number.

It is an amenable number.

3988686325 is a deficient number, since it is larger than the sum of its proper divisors (1337744463).

3988686325 is a wasteful number, since it uses less digits than its factorization.

3988686325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12272904 (or 12272899 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 58.

The square root of 3988686325 is about 63156.0474143213. The cubic root of 3988686325 is about 1585.9030270990.

The spelling of 3988686325 in words is "three billion, nine hundred eighty-eight million, six hundred eighty-six thousand, three hundred twenty-five".