2651889 has 4 divisors (see below), whose sum is σ = 3535856. Its totient is φ = 1767924.

The previous prime is 2651867. The next prime is 2651893. The reversal of 2651889 is 9881562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2651889 - 2⁹ = 2651377 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2651819) 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, 441979 + ... + 441984.

It is an arithmetic number, because the mean of its divisors is an integer number (883964).

2^2651889 is an apocalyptic number.

It is an amenable number.

2651889 is a deficient number, since it is larger than the sum of its proper divisors (883967).

2651889 is an equidigital number, since it uses as much as digits as its factorization.

2651889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883966.

The product of its digits is 34560, while the sum is 39.

The square root of 2651889 is about 1628.4621579883. The cubic root of 2651889 is about 138.4156236887.

It can be divided in two parts, 26 and 51889, that added together give a palindrome (51915).

The spelling of 2651889 in words is "two million, six hundred fifty-one thousand, eight hundred eighty-nine".