872005481 has 8 divisors (see below), whose sum is σ = 878241600. Its totient is φ = 865784880.

The previous prime is 872005447. The next prime is 872005487. The reversal of 872005481 is 184500278.

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 872005481 - 2¹⁰ = 872004457 is a prime.

It is a super-2 number, since 2×872005481² = 1520787117788082722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872005487) 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, 123476 + ... + 130346.

It is an arithmetic number, because the mean of its divisors is an integer number (109780200).

Almost surely, 2^872005481 is an apocalyptic number.

It is an amenable number.

872005481 is a deficient number, since it is larger than the sum of its proper divisors (6236119).

872005481 is a wasteful number, since it uses less digits than its factorization.

872005481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 872005481 is about 29529.7389253613. The cubic root of 872005481 is about 955.3732378808.

The spelling of 872005481 in words is "eight hundred seventy-two million, five thousand, four hundred eighty-one".