872005003 has 8 divisors (see below), whose sum is σ = 910404000. Its totient is φ = 833646528.

The previous prime is 872004979. The next prime is 872005007. The reversal of 872005003 is 300500278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 872005003 - 2⁵ = 872004971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872005007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38973 + ... + 57121.

It is an arithmetic number, because the mean of its divisors is an integer number (113800500).

Almost surely, 2^872005003 is an apocalyptic number.

872005003 is a deficient number, since it is larger than the sum of its proper divisors (38398997).

872005003 is a wasteful number, since it uses less digits than its factorization.

872005003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20261.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 872005003 is about 29529.7308318244. The cubic root of 872005003 is about 955.3730633145.

The spelling of 872005003 in words is "eight hundred seventy-two million, five thousand, three".