999000672 has 96 divisors (see below), whose sum is σ = 2688505344. Its totient is φ = 324710400.

The previous prime is 999000659. The next prime is 999000701. The reversal of 999000672 is 276000999.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660397 + ... + 661907.

It is an arithmetic number, because the mean of its divisors is an integer number (28005264).

Almost surely, 2^999000672 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 999000672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344252672).

999000672 is an abundant number, since it is smaller than the sum of its proper divisors (1689504672).

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

999000672 is a wasteful number, since it uses less digits than its factorization.

999000672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692 (or 1684 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 999000672 is about 31606.9718891260. The cubic root of 999000672 is about 999.6667796432. Note that the first 3 decimals are identical.

The spelling of 999000672 in words is "nine hundred ninety-nine million, six hundred seventy-two", and thus it is an aban number.