7171210489 has 9 divisors (see below), whose sum is σ = 7570205967. Its totient is φ = 6792254064.

The previous prime is 7171210433. The next prime is 7171210507. The reversal of 7171210489 is 9840121717.

The square root of 7171210489 is 84683.

It is a perfect power (a square), and thus also a powerful number.

7171210489 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5036031225 + 2135179264 = 70965^2 + 46208^2 .

It is not a de Polignac number, because 7171210489 - 2²¹ = 7169113337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7171210429) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1606749 + ... + 1611205.

Almost surely, 2^7171210489 is an apocalyptic number.

7171210489 is the 84683-rd square number.

7171210489 is the 42342-nd centered octagonal number.

It is an amenable number.

7171210489 is a deficient number, since it is larger than the sum of its proper divisors (398995478).

7171210489 is an frugal number, since it uses more digits than its factorization.

7171210489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8952 (or 4476 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 40.

The cubic root of 7171210489 is about 1928.4016305475.

Multiplying 7171210489 by its product of nonzero digits (28224), we get a square (202400244841536 = 14226744²).

The spelling of 7171210489 in words is "seven billion, one hundred seventy-one million, two hundred ten thousand, four hundred eighty-nine".