2601889 has 4 divisors (see below), whose sum is σ = 2606724. Its totient is φ = 2597056.

The previous prime is 2601869. The next prime is 2601899. The reversal of 2601889 is 9881062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9881062 = 2 ⋅4940531.

It can be written as a sum of positive squares in 2 ways, for example, as 1081600 + 1520289 = 1040^2 + 1233^2 .

It is a cyclic number.

It is not a de Polignac number, because 2601889 - 2⁵ = 2601857 is a prime.

It is a Duffinian number.

2601889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2601839) 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, 1492 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (651681).

2^2601889 is an apocalyptic number.

It is an amenable number.

2601889 is a deficient number, since it is larger than the sum of its proper divisors (4835).

2601889 is an equidigital number, since it uses as much as digits as its factorization.

2601889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834.

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

The square root of 2601889 is about 1613.0371973392. The cubic root of 2601889 is about 137.5401799931.

The spelling of 2601889 in words is "two million, six hundred one thousand, eight hundred eighty-nine".