1988085 has 16 divisors (see below), whose sum is σ = 3470400. Its totient is φ = 963840.

The previous prime is 1988057. The next prime is 1988087. The reversal of 1988085 is 5808891.

It is not a de Polignac number, because 1988085 - 2⁸ = 1987829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988087) 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, 5860 + ... + 6189.

It is an arithmetic number, because the mean of its divisors is an integer number (216900).

2^1988085 is an apocalyptic number.

1988085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1988085 is a deficient number, since it is larger than the sum of its proper divisors (1482315).

1988085 is a wasteful number, since it uses less digits than its factorization.

1988085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12068.

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 1988085 is about 1409.9946808410. The cubic root of 1988085 is about 125.7414071625.

The spelling of 1988085 in words is "one million, nine hundred eighty-eight thousand, eighty-five".