458989 has 4 divisors (see below), whose sum is σ = 460924. Its totient is φ = 457056.

The previous prime is 458987. The next prime is 458993. The reversal of 458989 is 989854.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989854 = 2 ⋅494927.

It can be written as a sum of positive squares in 2 ways, for example, as 110889 + 348100 = 333^2 + 590^2 .

It is a 3-Lehmer number, since φ(458989) divides (458989-1)³.

It is a cyclic number.

It is not a de Polignac number, because 458989 - 2¹ = 458987 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

458989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (458981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552 + ... + 1105.

It is an arithmetic number, because the mean of its divisors is an integer number (115231).

It is a Poulet number, since it divides 2⁴⁵⁸⁹⁸⁸-1.

2⁴⁵⁸⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

458989 is a deficient number, since it is larger than the sum of its proper divisors (1935).

458989 is a wasteful number, since it uses less digits than its factorization.

458989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934.

The product of its digits is 103680, while the sum is 43.

The square root of 458989 is about 677.4872692531. The cubic root of 458989 is about 77.1378315036.

The spelling of 458989 in words is "four hundred fifty-eight thousand, nine hundred eighty-nine".