872209927 has 2 divisors, whose sum is σ = 872209928. Its totient is φ = 872209926.

The previous prime is 872209909. The next prime is 872209931. The reversal of 872209927 is 729902278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 872209927 - 2¹¹ = 872207879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872209957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436104963 + 436104964.

It is an arithmetic number, because the mean of its divisors is an integer number (436104964).

Almost surely, 2^872209927 is an apocalyptic number.

872209927 is a deficient number, since it is larger than the sum of its proper divisors (1).

872209927 is an equidigital number, since it uses as much as digits as its factorization.

872209927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 872209927 is about 29533.2004191892. The cubic root of 872209927 is about 955.4478960409.

The spelling of 872209927 in words is "eight hundred seventy-two million, two hundred nine thousand, nine hundred twenty-seven".