872771489 has 8 divisors (see below), whose sum is σ = 904258560. Its totient is φ = 841492800.

The previous prime is 872771467. The next prime is 872771507. The reversal of 872771489 is 984177278.

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 872771489 - 2⁸ = 872771233 is a prime.

It is a super-2 number, since 2×872771489² = 1523460144022554242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 872771489.

It is not an unprimeable number, because it can be changed into a prime (872771089) 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, 43544 + ... + 60345.

It is an arithmetic number, because the mean of its divisors is an integer number (113032320).

Almost surely, 2^872771489 is an apocalyptic number.

It is an amenable number.

872771489 is a deficient number, since it is larger than the sum of its proper divisors (31487071).

872771489 is a wasteful number, since it uses less digits than its factorization.

872771489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104191.

The product of its digits is 1580544, while the sum is 53.

The square root of 872771489 is about 29542.7061895149. The cubic root of 872771489 is about 955.6529033092.

The spelling of 872771489 in words is "eight hundred seventy-two million, seven hundred seventy-one thousand, four hundred eighty-nine".