2690191 has 16 divisors (see below), whose sum is σ = 3283200. Its totient is φ = 2153088.

The previous prime is 2690179. The next prime is 2690197. The reversal of 2690191 is 1910962.

It is not a de Polignac number, because 2690191 - 2⁹ = 2689679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690197) 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, 14940 + ... + 15118.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

2^2690191 is an apocalyptic number.

2690191 is a deficient number, since it is larger than the sum of its proper divisors (593009).

2690191 is a wasteful number, since it uses less digits than its factorization.

2690191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2690191 is about 1640.1801730298. The cubic root of 2690191 is about 139.0788331866.

The spelling of 2690191 in words is "two million, six hundred ninety thousand, one hundred ninety-one".