999272867 has 4 divisors (see below), whose sum is σ = 1000085856. Its totient is φ = 998459880.

The previous prime is 999272863. The next prime is 999272959. The reversal of 999272867 is 768272999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 999272867 - 2² = 999272863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999272863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404648 + ... + 407109.

It is an arithmetic number, because the mean of its divisors is an integer number (250021464).

Almost surely, 2^999272867 is an apocalyptic number.

999272867 is a deficient number, since it is larger than the sum of its proper divisors (812989).

999272867 is a wasteful number, since it uses less digits than its factorization.

999272867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812988.

The product of its digits is 6858432, while the sum is 59.

The square root of 999272867 is about 31611.2775287555. The cubic root of 999272867 is about 999.7575635627.

The spelling of 999272867 in words is "nine hundred ninety-nine million, two hundred seventy-two thousand, eight hundred sixty-seven".