999364608 has 384 divisors, whose sum is σ = 3396556800. Its totient is φ = 287539200.

The previous prime is 999364579. The next prime is 999364609. The reversal of 999364608 is 806463999.

It is a happy number.

999364608 is a `hidden beast` number, since 99 + 93 + 6 + 460 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999364609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18855910 + ... + 18855962.

It is an arithmetic number, because the mean of its divisors is an integer number (8845200).

Almost surely, 2^999364608 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 999364608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698278400).

999364608 is an abundant number, since it is smaller than the sum of its proper divisors (2397192192).

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

999364608 is a wasteful number, since it uses less digits than its factorization.

999364608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 999364608 is about 31612.7285756861. The cubic root of 999364608 is about 999.7881577927.

The spelling of 999364608 in words is "nine hundred ninety-nine million, three hundred sixty-four thousand, six hundred eight".