999653116 has 108 divisors (see below), whose sum is σ = 2276786568. Its totient is φ = 382536000.

The previous prime is 999653051. The next prime is 999653119. The reversal of 999653116 is 611356999.

It is a Harshad number since it is a multiple of its sum of digits (49).

999653116 is a modest number, since divided by 53116 gives 9996 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 999653116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999653119) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1446331 + ... + 1447021.

Almost surely, 2^999653116 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 999653116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138393284).

999653116 is an abundant number, since it is smaller than the sum of its proper divisors (1277133452).

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

999653116 is a wasteful number, since it uses less digits than its factorization.

999653116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 772 counting only the distinct ones).

The product of its digits is 393660, while the sum is 49.

The square root of 999653116 is about 31617.2914083417. The cubic root of 999653116 is about 999.8843586276.

The spelling of 999653116 in words is "nine hundred ninety-nine million, six hundred fifty-three thousand, one hundred sixteen".