1043985 has 16 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 549120.

The previous prime is 1043981. The next prime is 1044019. The reversal of 1043985 is 5893401.

It is not a de Polignac number, because 1043985 - 2² = 1043981 is a prime.

1043985 is a lucky number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1043981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745 + ... + 1625.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^1043985 is an apocalyptic number.

1043985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1043985 is a deficient number, since it is larger than the sum of its proper divisors (649455).

1043985 is an equidigital number, since it uses as much as digits as its factorization.

1043985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1043985 is about 1021.7558416765. The cubic root of 1043985 is about 101.4451805865.

The spelling of 1043985 in words is "one million, forty-three thousand, nine hundred eighty-five".