458789985 has 12 divisors (see below), whose sum is σ = 795236052. Its totient is φ = 244687968.

The previous prime is 458789957. The next prime is 458790011. The reversal of 458789985 is 589987854.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 242611776 + 216178209 = 15576^2 + 14703^2 .

It is not a de Polignac number, because 458789985 - 2¹² = 458785889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5097622 + ... + 5097711.

It is an arithmetic number, because the mean of its divisors is an integer number (66269671).

Almost surely, 2^458789985 is an apocalyptic number.

458789985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

458789985 is a deficient number, since it is larger than the sum of its proper divisors (336446067).

458789985 is a wasteful number, since it uses less digits than its factorization.

458789985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10195344 (or 10195341 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 63.

The square root of 458789985 is about 21419.3833944864. The cubic root of 458789985 is about 771.2668105125.

The spelling of 458789985 in words is "four hundred fifty-eight million, seven hundred eighty-nine thousand, nine hundred eighty-five".