2646091 has 16 divisors (see below), whose sum is σ = 3168000. Its totient is φ = 2163168.

The previous prime is 2646089. The next prime is 2646107. The reversal of 2646091 is 1906462.

2646091 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 2646091 - 2¹ = 2646089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2646001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17685 + ... + 17833.

It is an arithmetic number, because the mean of its divisors is an integer number (198000).

2^2646091 is an apocalyptic number.

2646091 is a deficient number, since it is larger than the sum of its proper divisors (521909).

2646091 is a wasteful number, since it uses less digits than its factorization.

2646091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2646091 is about 1626.6809767130. The cubic root of 2646091 is about 138.3146743434.

The spelling of 2646091 in words is "two million, six hundred forty-six thousand, ninety-one".