872079907 has 4 divisors (see below), whose sum is σ = 873536400. Its totient is φ = 870623416.

The previous prime is 872079883. The next prime is 872079911. The reversal of 872079907 is 709970278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 709970278 = 2 ⋅354985139.

It is a cyclic number.

It is not a de Polignac number, because 872079907 - 2⁷ = 872079779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872070907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727348 + ... + 728545.

It is an arithmetic number, because the mean of its divisors is an integer number (218384100).

Almost surely, 2^872079907 is an apocalyptic number.

872079907 is a deficient number, since it is larger than the sum of its proper divisors (1456493).

872079907 is a wasteful number, since it uses less digits than its factorization.

872079907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456492.

The product of its (nonzero) digits is 444528, while the sum is 49.

The square root of 872079907 is about 29530.9990857065. Note that the first 3 decimals coincide. The cubic root of 872079907 is about 955.4004175975.

The spelling of 872079907 in words is "eight hundred seventy-two million, seventy-nine thousand, nine hundred seven".