996945205 has 8 divisors (see below), whose sum is σ = 1228667832.
Its totient is φ = 776000448.
The previous prime is 996945203. The next prime is 996945251. The reversal of 996945205 is 502549699.
996945205 = 223262 + 223272.
It can be written as a sum of positive squares in 4 ways, for example, as 498494929 + 498450276 = 22327^2 + 22326^2
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 996945205 - 21 = 996945203 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 (996945203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2694262 + ... + 2694631.
It is an arithmetic number, because the mean of its divisors is an integer number (153583479).
Almost surely, 2996945205 is an apocalyptic number.
996945205 is the 22327-th centered square number.
It is an amenable number.
996945205 is a deficient number, since it is larger than the sum of its proper divisors (231722627).
996945205 is a wasteful number, since it uses less digits than its factorization.
996945205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5388935.
The product of its (nonzero) digits is 874800, while the sum is 49.
The square root of 996945205 is about 31574.4391082407.
The cubic root of 996945205 is about 998.9806963731.
The spelling of 996945205 in words is "nine hundred ninety-six million, nine hundred forty-five thousand, two hundred five".