2608891 has 6 divisors (see below), whose sum is σ = 2646980. Its totient is φ = 2571216.

The previous prime is 2608889. The next prime is 2608897. The reversal of 2608891 is 1988062.

It is not a de Polignac number, because 2608891 - 2¹ = 2608889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2608897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18700 + ... + 18838.

2^2608891 is an apocalyptic number.

2608891 is a deficient number, since it is larger than the sum of its proper divisors (38089).

2608891 is an equidigital number, since it uses as much as digits as its factorization.

2608891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2608891 is about 1615.2061787896. The cubic root of 2608891 is about 137.6634486041.

The spelling of 2608891 in words is "two million, six hundred eight thousand, eight hundred ninety-one".