1985043 has 8 divisors (see below), whose sum is σ = 2667456. Its totient is φ = 1313000.

The previous prime is 1985041. The next prime is 1985047. The reversal of 1985043 is 3405891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1985043 - 2¹ = 1985041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1985043.

It is not an unprimeable number, because it can be changed into a prime (1985041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133 + ... + 2918.

It is an arithmetic number, because the mean of its divisors is an integer number (333432).

2^1985043 is an apocalyptic number.

1985043 is a deficient number, since it is larger than the sum of its proper divisors (682413).

1985043 is a wasteful number, since it uses less digits than its factorization.

1985043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185.

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

The square root of 1985043 is about 1408.9155404069. The cubic root of 1985043 is about 125.6772414588.

The spelling of 1985043 in words is "one million, nine hundred eighty-five thousand, forty-three".