1726806 has 8 divisors (see below), whose sum is σ = 3453624. Its totient is φ = 575600.

The previous prime is 1726787. The next prime is 1726811. The reversal of 1726806 is 6086271.

It is a happy number.

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

1726806 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 143895 + ... + 143906.

It is an arithmetic number, because the mean of its divisors is an integer number (431703).

2^1726806 is an apocalyptic number.

1726806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1726806 is a wasteful number, since it uses less digits than its factorization.

1726806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287806.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1726806 is about 1314.0799062462. The cubic root of 1726806 is about 119.9723547428.

It can be divided in two parts, 172680 and 6, that multiplied together give a triangular number (1036080 = T₁₄₃₉).

The spelling of 1726806 in words is "one million, seven hundred twenty-six thousand, eight hundred six".