3974547625 has 8 divisors (see below), whose sum is σ = 4960235592. Its totient is φ = 3179638000.

The previous prime is 3974547617. The next prime is 3974547631. The reversal of 3974547625 is 5267454793.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 122235136 + 3852312489 = 11056^2 + 62067^2 .

It is not a de Polignac number, because 3974547625 - 2³ = 3974547617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15898066 + ... + 15898315.

It is an arithmetic number, because the mean of its divisors is an integer number (620029449).

Almost surely, 2^3974547625 is an apocalyptic number.

It is an amenable number.

3974547625 is a deficient number, since it is larger than the sum of its proper divisors (985687967).

3974547625 is an equidigital number, since it uses as much as digits as its factorization.

3974547625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31796396 (or 31796386 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 52.

The square root of 3974547625 is about 63044.0133954050. The cubic root of 3974547625 is about 1584.0269580201.

The spelling of 3974547625 in words is "three billion, nine hundred seventy-four million, five hundred forty-seven thousand, six hundred twenty-five".