999276 has 12 divisors (see below), whose sum is σ = 2331672. Its totient is φ = 333088.

The previous prime is 999269. The next prime is 999287. The reversal of 999276 is 672999.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999276.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41625 + ... + 41648.

It is an arithmetic number, because the mean of its divisors is an integer number (194306).

2⁹⁹⁹²⁷⁶ is an apocalyptic number.

It is an amenable number.

999276 is an abundant number, since it is smaller than the sum of its proper divisors (1332396).

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

999276 is a wasteful number, since it uses less digits than its factorization.

999276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83280 (or 83278 counting only the distinct ones).

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

The square root of 999276 is about 999.6379344543. The cubic root of 999276 is about 99.9758608401.

It can be divided in two parts, 999 and 276, that added together give a triangular number (1275 = T₅₀).

The spelling of 999276 in words is "nine hundred ninety-nine thousand, two hundred seventy-six".