8380853209 has 9 divisors (see below), whose sum is σ = 8584321503. Its totient is φ = 8182104672.

The previous prime is 8380853179. The next prime is 8380853227. The reversal of 8380853209 is 9023580838.

It is a happy number.

The square root of 8380853209 is 91547.

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

It can be written as a sum of positive squares in only one way, i.e., 2120878809 + 6259974400 = 46053^2 + 79120^2 .

It is not a de Polignac number, because 8380853209 - 2²⁵ = 8347298777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8380857209) 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, 3935457 + ... + 3937585.

Almost surely, 2^8380853209 is an apocalyptic number.

8380853209 is the 91547-th square number.

8380853209 is the 45774-th centered octagonal number.

It is an amenable number.

8380853209 is a deficient number, since it is larger than the sum of its proper divisors (203468294).

8380853209 is an frugal number, since it uses more digits than its factorization.

8380853209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The cubic root of 8380853209 is about 2031.2470363677.

The spelling of 8380853209 in words is "eight billion, three hundred eighty million, eight hundred fifty-three thousand, two hundred nine".