999953112 has 64 divisors (see below), whose sum is σ = 2590248960. Its totient is φ = 321350400.

The previous prime is 999953111. The next prime is 999953113. The reversal of 999953112 is 211359999.

999953112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (999953111) and next prime (999953113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999953111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206673 + ... + 211455.

It is an arithmetic number, because the mean of its divisors is an integer number (40472640).

Almost surely, 2^999953112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999953112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295124480).

999953112 is an abundant number, since it is smaller than the sum of its proper divisors (1590295848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999953112 is a wasteful number, since it uses less digits than its factorization.

999953112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104 (or 5100 counting only the distinct ones).

The product of its digits is 196830, while the sum is 48.

The square root of 999953112 is about 31622.0352286187. The cubic root of 999953112 is about 999.9843704224.

The spelling of 999953112 in words is "nine hundred ninety-nine million, nine hundred fifty-three thousand, one hundred twelve".