2068661 has 8 divisors (see below), whose sum is σ = 2440704. Its totient is φ = 1715760.

The previous prime is 2068639. The next prime is 2068667. The reversal of 2068661 is 1668602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2068661 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068667) 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, 4550 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (305088).

2^2068661 is an apocalyptic number.

It is an amenable number.

2068661 is a deficient number, since it is larger than the sum of its proper divisors (372043).

2068661 is an equidigital number, since it uses as much as digits as its factorization.

2068661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2068661 is about 1438.2840470505. The cubic root of 2068661 is about 127.4177041658.

The spelling of 2068661 in words is "two million, sixty-eight thousand, six hundred sixty-one".