999393125 has 40 divisors (see below), whose sum is σ = 1339071360.
Its totient is φ = 743688000.
The previous prime is 999393119. The next prime is 999393139. The reversal of 999393125 is 521393999.
It is not a de Polignac number, because 999393125 - 26 = 999393061 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 530936 + ... + 532814.
It is an arithmetic number, because the mean of its divisors is an integer number (33476784).
Almost surely, 2999393125 is an apocalyptic number.
It is an amenable number.
999393125 is a deficient number, since it is larger than the sum of its proper divisors (339678235).
999393125 is a wasteful number, since it uses less digits than its factorization.
With its successor (999393126) it forms an eRAP, since the sums of their prime factors are consecutive (1959 and 1960).
999393125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1959 (or 1944 counting only the distinct ones).
The product of its digits is 590490, while the sum is 50.
The square root of 999393125 is about 31613.1796091440.
The cubic root of 999393125 is about 999.7976673976.
The spelling of 999393125 in words is "nine hundred ninety-nine million, three hundred ninety-three thousand, one hundred twenty-five".