866301489 has 9 divisors (see below), whose sum is σ = 1251451929. Its totient is φ = 577475460.

The previous prime is 866301451. The next prime is 866301493. The reversal of 866301489 is 984103668.

The square root of 866301489 is 29433.

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

866301489 is a `hidden beast` number, since 8 + 6 + 630 + 1 + 4 + 8 + 9 = 666.

866301489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 866301489 - 2²¹ = 864204337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (866306489) 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, 83394 + ... + 93204.

Almost surely, 2^866301489 is an apocalyptic number.

866301489 is the 29433-rd square number.

866301489 is the 14717-th centered octagonal number.

It is an amenable number.

866301489 is a deficient number, since it is larger than the sum of its proper divisors (385150440).

866301489 is an frugal number, since it uses more digits than its factorization.

866301489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19628 (or 9814 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The cubic root of 866301489 is about 953.2855726014.

The spelling of 866301489 in words is "eight hundred sixty-six million, three hundred one thousand, four hundred eighty-nine".