1988585 has 8 divisors (see below), whose sum is σ = 2394240. Its totient is φ = 1585584.

The previous prime is 1988579. The next prime is 1988587. The reversal of 1988585 is 5858891.

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 1988585 - 2¹⁶ = 1923049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1988587) 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, 1886 + ... + 2744.

It is an arithmetic number, because the mean of its divisors is an integer number (299280).

2^1988585 is an apocalyptic number.

It is an amenable number.

1988585 is a deficient number, since it is larger than the sum of its proper divisors (405655).

1988585 is an equidigital number, since it uses as much as digits as its factorization.

1988585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327.

The product of its digits is 115200, while the sum is 44.

The square root of 1988585 is about 1410.1719753278. The cubic root of 1988585 is about 125.7519475290.

The spelling of 1988585 in words is "one million, nine hundred eighty-eight thousand, five hundred eighty-five".