1660086 has 12 divisors (see below), whose sum is σ = 3596892. Its totient is φ = 553356.

The previous prime is 1660073. The next prime is 1660097. The reversal of 1660086 is 6800661.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46096 + ... + 46131.

It is an arithmetic number, because the mean of its divisors is an integer number (299741).

2^1660086 is an apocalyptic number.

1660086 is an abundant number, since it is smaller than the sum of its proper divisors (1936806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1660086 is a wasteful number, since it uses less digits than its factorization.

1660086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92235 (or 92232 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1660086 is about 1288.4432467129. The cubic root of 1660086 is about 118.4068594608.

The spelling of 1660086 in words is "one million, six hundred sixty thousand, eighty-six".