865588441 has 2 divisors, whose sum is σ = 865588442. Its totient is φ = 865588440.

The previous prime is 865588429. The next prime is 865588481. The reversal of 865588441 is 144885568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 489073225 + 376515216 = 22115^2 + 19404^2 .

It is a cyclic number.

It is not a de Polignac number, because 865588441 - 2¹³ = 865580249 is a prime.

It is not a weakly prime, because it can be changed into another prime (865588411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432794220 + 432794221.

It is an arithmetic number, because the mean of its divisors is an integer number (432794221).

Almost surely, 2^865588441 is an apocalyptic number.

It is an amenable number.

865588441 is a deficient number, since it is larger than the sum of its proper divisors (1).

865588441 is an equidigital number, since it uses as much as digits as its factorization.

865588441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1228800, while the sum is 49.

The square root of 865588441 is about 29420.8844360600. The cubic root of 865588441 is about 953.0239527685.

The spelling of 865588441 in words is "eight hundred sixty-five million, five hundred eighty-eight thousand, four hundred forty-one".