872003808 has 72 divisors (see below), whose sum is σ = 2670523128. Its totient is φ = 268307712.

The previous prime is 872003789. The next prime is 872003809. The reversal of 872003808 is 808300278.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872003809) 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 11 ways as a sum of consecutive naturals, for example, 112710 + ... + 120197.

It is an arithmetic number, because the mean of its divisors is an integer number (37090599).

Almost surely, 2^872003808 is an apocalyptic number.

It is an amenable number.

872003808 is an abundant number, since it is smaller than the sum of its proper divisors (1798519320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872003808 is a wasteful number, since it uses less digits than its factorization.

872003808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232936 (or 232925 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 872003808 is about 29529.7105979723. The cubic root of 872003808 is about 955.3726268983.

The spelling of 872003808 in words is "eight hundred seventy-two million, three thousand, eight hundred eight".