7889525329 has 9 divisors (see below), whose sum is σ = 9178334427. Its totient is φ = 6761917344.

The previous prime is 7889525317. The next prime is 7889525339. The reversal of 7889525329 is 9235259887.

The square root of 7889525329 is 88823.

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., 880486929 + 7009038400 = 29673^2 + 83720^2 .

It is not a de Polignac number, because 7889525329 - 2¹⁷ = 7889394257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7889525309) 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, 615417 + ... + 628105.

Almost surely, 2^7889525329 is an apocalyptic number.

7889525329 is the 88823-rd square number.

7889525329 is the 44412-nd centered octagonal number.

It is an amenable number.

7889525329 is a deficient number, since it is larger than the sum of its proper divisors (1288809098).

7889525329 is an frugal number, since it uses more digits than its factorization.

7889525329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25392 (or 12696 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The cubic root of 7889525329 is about 1990.7510720137.

The spelling of 7889525329 in words is "seven billion, eight hundred eighty-nine million, five hundred twenty-five thousand, three hundred twenty-nine".