872209803 has 30 divisors (see below), whose sum is σ = 1256927524. Its totient is φ = 537993152.

The previous prime is 872209787. The next prime is 872209813. The reversal of 872209803 is 308902278.

It is not a de Polignac number, because 872209803 - 2⁴ = 872209787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872209813) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 14783188 + ... + 14783246.

Almost surely, 2^872209803 is an apocalyptic number.

872209803 is a deficient number, since it is larger than the sum of its proper divisors (384717721).

872209803 is an frugal number, since it uses more digits than its factorization.

872209803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 872209803 is about 29533.1983198569. The cubic root of 872209803 is about 955.4478507630.

The spelling of 872209803 in words is "eight hundred seventy-two million, two hundred nine thousand, eight hundred three".