863011489 has 2 divisors, whose sum is σ = 863011490. Its totient is φ = 863011488.

The previous prime is 863011441. The next prime is 863011577. The reversal of 863011489 is 984110368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 535691025 + 327320464 = 23145^2 + 18092^2 .

It is a cyclic number.

It is not a de Polignac number, because 863011489 - 2¹⁹ = 862487201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (863011789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431505744 + 431505745.

It is an arithmetic number, because the mean of its divisors is an integer number (431505745).

Almost surely, 2^863011489 is an apocalyptic number.

It is an amenable number.

863011489 is a deficient number, since it is larger than the sum of its proper divisors (1).

863011489 is an equidigital number, since it uses as much as digits as its factorization.

863011489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 863011489 is about 29377.0571875401. The cubic root of 863011489 is about 952.0772602981.

The spelling of 863011489 in words is "eight hundred sixty-three million, eleven thousand, four hundred eighty-nine".