999703125 has 42 divisors (see below), whose sum is σ = 1805250330. Its totient is φ = 533100000.

The previous prime is 999703079. The next prime is 999703157. The reversal of 999703125 is 521307999.

It is a happy number.

999703125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 7 ways, for example, as 947039076 + 52664049 = 30774^2 + 7257^2 .

It is not a de Polignac number, because 999703125 - 2¹⁰ = 999702101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 137071 + ... + 144179.

Almost surely, 2^999703125 is an apocalyptic number.

It is an amenable number.

999703125 is a deficient number, since it is larger than the sum of its proper divisors (805547205).

999703125 is an frugal number, since it uses more digits than its factorization.

999703125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7145 (or 7117 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 999703125 is about 31618.0822473470. The cubic root of 999703125 is about 999.9010318723.

The spelling of 999703125 in words is "nine hundred ninety-nine million, seven hundred three thousand, one hundred twenty-five".