2068649 has 8 divisors (see below), whose sum is σ = 2271360. Its totient is φ = 1868400.

The previous prime is 2068639. The next prime is 2068667. The reversal of 2068649 is 9468602.

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

It is a cyclic number.

It is not a de Polignac number, because 2068649 - 2⁸ = 2068393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2068639) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1472 + ... + 2510.

It is an arithmetic number, because the mean of its divisors is an integer number (283920).

2^2068649 is an apocalyptic number.

It is an amenable number.

2068649 is a deficient number, since it is larger than the sum of its proper divisors (202711).

2068649 is a wasteful number, since it uses less digits than its factorization.

2068649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2068649 is about 1438.2798754067. The cubic root of 2068649 is about 127.4174577882.

The spelling of 2068649 in words is "two million, sixty-eight thousand, six hundred forty-nine".