1700661 has 8 divisors (see below), whose sum is σ = 2301664. Its totient is φ = 1116720.

The previous prime is 1700659. The next prime is 1700669. The reversal of 1700661 is 1660071.

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

It is not a de Polignac number, because 1700661 - 2¹ = 1700659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1700669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4030 + ... + 4431.

It is an arithmetic number, because the mean of its divisors is an integer number (287708).

2^1700661 is an apocalyptic number.

It is an amenable number.

1700661 is a deficient number, since it is larger than the sum of its proper divisors (601003).

1700661 is an equidigital number, since it uses as much as digits as its factorization.

1700661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1700661 is about 1304.0939383342. The cubic root of 1700661 is about 119.3637856666.

The spelling of 1700661 in words is "one million, seven hundred thousand, six hundred sixty-one".