1985763 has 16 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 1199904.

The previous prime is 1985759. The next prime is 1985771. The reversal of 1985763 is 3675891.

It is not a de Polignac number, because 1985763 - 2² = 1985759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1985713) 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, 1870 + ... + 2732.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^1985763 is an apocalyptic number.

1985763 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1985763 is a deficient number, since it is larger than the sum of its proper divisors (917277).

1985763 is a wasteful number, since it uses less digits than its factorization.

1985763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938.

The product of its digits is 45360, while the sum is 39.

The square root of 1985763 is about 1409.1710329126. The cubic root of 1985763 is about 125.6924345261.

The spelling of 1985763 in words is "one million, nine hundred eighty-five thousand, seven hundred sixty-three".