2091067 has 4 divisors (see below), whose sum is σ = 2281176. Its totient is φ = 1900960.

The previous prime is 2091053. The next prime is 2091097. The reversal of 2091067 is 7601902.

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

It is a cyclic number.

It is not a de Polignac number, because 2091067 - 2¹⁵ = 2058299 is a prime.

It is a super-2 number, since 2×2091067² = 8745122396978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2091097) 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, 95038 + ... + 95059.

It is an arithmetic number, because the mean of its divisors is an integer number (570294).

2^2091067 is an apocalyptic number.

2091067 is a deficient number, since it is larger than the sum of its proper divisors (190109).

2091067 is a wasteful number, since it uses less digits than its factorization.

2091067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190108.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 2091067 is about 1446.0522120587. The cubic root of 2091067 is about 127.8760804276.

Adding to 2091067 its reverse (7601902), we get a palindrome (9692969).

The spelling of 2091067 in words is "two million, ninety-one thousand, sixty-seven".