999672 has 32 divisors (see below), whose sum is σ = 2609280. Its totient is φ = 318560.

The previous prime is 999671. The next prime is 999683. The reversal of 999672 is 276999.

999672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999672.

It is not an unprimeable number, because it can be changed into a prime (999671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354 + ... + 1457.

It is an arithmetic number, because the mean of its divisors is an integer number (81540).

2⁹⁹⁹⁶⁷² is an apocalyptic number.

999672 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

999672 is an abundant number, since it is smaller than the sum of its proper divisors (1609608).

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

999672 is a wasteful number, since it uses less digits than its factorization.

999672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843 (or 1839 counting only the distinct ones).

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

The square root of 999672 is about 999.8359865498. The cubic root of 999672 is about 99.9890654711.

It can be divided in two parts, 9 and 99672, that added together give a triangular number (99681 = T₄₄₆).

The spelling of 999672 in words is "nine hundred ninety-nine thousand, six hundred seventy-two".