4389684625 has 16 divisors (see below), whose sum is σ = 5626395216. Its totient is φ = 3416832000.

The previous prime is 4389684617. The next prime is 4389684643. The reversal of 4389684625 is 5264869834.

It can be written as a sum of positive squares in 8 ways, for example, as 98386561 + 4291298064 = 9919^2 + 65508^2 .

It is not a de Polignac number, because 4389684625 - 2³ = 4389684617 is a prime.

It is a super-2 number, since 2×4389684625² = 38538662213922781250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469936 + ... + 479185.

It is an arithmetic number, because the mean of its divisors is an integer number (351649701).

Almost surely, 2^4389684625 is an apocalyptic number.

It is an amenable number.

4389684625 is a deficient number, since it is larger than the sum of its proper divisors (1236710591).

4389684625 is an equidigital number, since it uses as much as digits as its factorization.

4389684625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949173 (or 949163 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 55.

The square root of 4389684625 is about 66254.6951166481. The cubic root of 4389684625 is about 1637.3609928035.

The spelling of 4389684625 in words is "four billion, three hundred eighty-nine million, six hundred eighty-four thousand, six hundred twenty-five".