8125399 has 8 divisors (see below), whose sum is σ = 8268848. Its totient is φ = 7983360.

The previous prime is 8125391. The next prime is 8125427. The reversal of 8125399 is 9935218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8125399 - 2³ = 8125391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8125391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20269 + ... + 20665.

It is an arithmetic number, because the mean of its divisors is an integer number (1033606).

Almost surely, 2^8125399 is an apocalyptic number.

8125399 is a deficient number, since it is larger than the sum of its proper divisors (143449).

8125399 is a wasteful number, since it uses less digits than its factorization.

8125399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its digits is 19440, while the sum is 37.

The square root of 8125399 is about 2850.5085511186. The cubic root of 8125399 is about 201.0395786850.

The spelling of 8125399 in words is "eight million, one hundred twenty-five thousand, three hundred ninety-nine".