365489 has 2 divisors, whose sum is σ = 365490. Its totient is φ = 365488.

The previous prime is 365479. The next prime is 365507. The reversal of 365489 is 984563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339889 + 25600 = 583^2 + 160^2 .

It is an emirp because it is prime and its reverse (984563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 365489 - 2⁴ = 365473 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 365489.

It is not a weakly prime, because it can be changed into another prime (365419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182744 + 182745.

It is an arithmetic number, because the mean of its divisors is an integer number (182745).

2³⁶⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

365489 is a deficient number, since it is larger than the sum of its proper divisors (1).

365489 is an equidigital number, since it uses as much as digits as its factorization.

365489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 365489 is about 604.5568625034. The cubic root of 365489 is about 71.4975955636.

The spelling of 365489 in words is "three hundred sixty-five thousand, four hundred eighty-nine".