9964205 has 4 divisors (see below), whose sum is σ = 11957052. Its totient is φ = 7971360.

The previous prime is 9964187. The next prime is 9964217. The reversal of 9964205 is 5024699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5024699 = 809 ⋅6211.

It can be written as a sum of positive squares in 2 ways, for example, as 5354596 + 4609609 = 2314^2 + 2147^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9964205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996416 + ... + 996425.

It is an arithmetic number, because the mean of its divisors is an integer number (2989263).

Almost surely, 2^9964205 is an apocalyptic number.

It is an amenable number.

9964205 is a deficient number, since it is larger than the sum of its proper divisors (1992847).

9964205 is a wasteful number, since it uses less digits than its factorization.

9964205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992846.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 9964205 is about 3156.6128999293. The cubic root of 9964205 is about 215.1861017106.

The spelling of 9964205 in words is "nine million, nine hundred sixty-four thousand, two hundred five".