872209933 has 32 divisors (see below), whose sum is σ = 1072028160. Its totient is φ = 693411840.

The previous prime is 872209931. The next prime is 872209957. The reversal of 872209933 is 339902278.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 872209933 - 2¹ = 872209931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 872209933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872209931) 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 in 31 ways as a sum of consecutive naturals, for example, 1511341 + ... + 1511917.

It is an arithmetic number, because the mean of its divisors is an integer number (33500880).

Almost surely, 2^872209933 is an apocalyptic number.

It is an amenable number.

872209933 is a deficient number, since it is larger than the sum of its proper divisors (199818227).

872209933 is a wasteful number, since it uses less digits than its factorization.

872209933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 872209933 is about 29533.2005207698. The cubic root of 872209933 is about 955.4478982317.

The spelling of 872209933 in words is "eight hundred seventy-two million, two hundred nine thousand, nine hundred thirty-three".