8417928725 has 6 divisors (see below), whose sum is σ = 10438231650. Its totient is φ = 6734342960.

The previous prime is 8417928721. The next prime is 8417928731. The reversal of 8417928725 is 5278297148.

It can be written as a sum of positive squares in 3 ways, for example, as 131285764 + 8286642961 = 11458^2 + 91031^2 .

It is not a de Polignac number, because 8417928725 - 2² = 8417928721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8417928721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168358550 + ... + 168358599.

It is an arithmetic number, because the mean of its divisors is an integer number (1739705275).

Almost surely, 2^8417928725 is an apocalyptic number.

It is an amenable number.

8417928725 is a deficient number, since it is larger than the sum of its proper divisors (2020302925).

8417928725 is a wasteful number, since it uses less digits than its factorization.

8417928725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336717159 (or 336717154 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 53.

The square root of 8417928725 is about 91749.2709780301. The cubic root of 8417928725 is about 2034.2379312056.

The spelling of 8417928725 in words is "eight billion, four hundred seventeen million, nine hundred twenty-eight thousand, seven hundred twenty-five".