2068091 has 4 divisors (see below), whose sum is σ = 2158032. Its totient is φ = 1978152.

The previous prime is 2068069. The next prime is 2068109. The reversal of 2068091 is 1908602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2068091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2068091.

It is not an unprimeable number, because it can be changed into a prime (2068061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44936 + ... + 44981.

It is an arithmetic number, because the mean of its divisors is an integer number (539508).

2^2068091 is an apocalyptic number.

2068091 is a deficient number, since it is larger than the sum of its proper divisors (89941).

2068091 is an equidigital number, since it uses as much as digits as its factorization.

2068091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89940.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 2068091 is about 1438.0858806066. The cubic root of 2068091 is about 127.4060001758.

The spelling of 2068091 in words is "two million, sixty-eight thousand, ninety-one".