76860289 has 9 divisors (see below), whose sum is σ = 84588931. Its totient is φ = 69785320.

The previous prime is 76860271. The next prime is 76860317. The reversal of 76860289 is 98206867.

The square root of 76860289 is 8767.

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., 37271025 + 39589264 = 6105^2 + 6292^2 .

It is not a de Polignac number, because 76860289 - 2⁵ = 76860257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76860209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 96039 + ... + 96835.

Almost surely, 2^76860289 is an apocalyptic number.

76860289 is the 8767-th square number.

76860289 is the 4384-th centered octagonal number.

It is an amenable number.

76860289 is a deficient number, since it is larger than the sum of its proper divisors (7728642).

76860289 is an frugal number, since it uses more digits than its factorization.

76860289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The cubic root of 76860289 is about 425.1746253560.

The spelling of 76860289 in words is "seventy-six million, eight hundred sixty thousand, two hundred eighty-nine".