1058985 has 24 divisors (see below), whose sum is σ = 1861704. Its totient is φ = 556800.

The previous prime is 1058983. The next prime is 1058999. The reversal of 1058985 is 5898501.

It can be written as a sum of positive squares in 4 ways, for example, as 205209 + 853776 = 453^2 + 924^2 .

It is not a de Polignac number, because 1058985 - 2¹ = 1058983 is a prime.

It is a super-2 number, since 2×1058985² = 2242898460450, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1058983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4429 + ... + 4661.

It is an arithmetic number, because the mean of its divisors is an integer number (77571).

2^1058985 is an apocalyptic number.

1058985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1058985 is a deficient number, since it is larger than the sum of its proper divisors (802719).

1058985 is a wasteful number, since it uses less digits than its factorization.

1058985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1058985 is about 1029.0699684667. The cubic root of 1058985 is about 101.9287276034.

The spelling of 1058985 in words is "one million, fifty-eight thousand, nine hundred eighty-five".