1050985 has 32 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 684288.

The previous prime is 1050977. The next prime is 1050997. The reversal of 1050985 is 5890501.

It is a 3-Lehmer number, since φ(1050985) divides (1050985-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 1050985 - 2³ = 1050977 is a prime.

It is a super-2 number, since 2×1050985² = 2209138940450, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 28387 + ... + 28423.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

It is a Poulet number, since it divides 2^1050984-1.

2^1050985 is an apocalyptic number.

It is an amenable number.

1050985 is a deficient number, since it is larger than the sum of its proper divisors (481175).

1050985 is a wasteful number, since it uses less digits than its factorization.

1050985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1050985 is about 1025.1755947154. The cubic root of 1050985 is about 101.6714083011.

The spelling of 1050985 in words is "one million, fifty thousand, nine hundred eighty-five".