2651879 has 4 divisors (see below), whose sum is σ = 2658600. Its totient is φ = 2645160.

The previous prime is 2651867. The next prime is 2651893. The reversal of 2651879 is 9781562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2651879 - 2¹⁶ = 2586343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2729 + ... + 3570.

It is an arithmetic number, because the mean of its divisors is an integer number (664650).

2^2651879 is an apocalyptic number.

2651879 is a deficient number, since it is larger than the sum of its proper divisors (6721).

2651879 is an equidigital number, since it uses as much as digits as its factorization.

2651879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720.

The product of its digits is 30240, while the sum is 38.

The square root of 2651879 is about 1628.4590876040. The cubic root of 2651879 is about 138.4154497048.

The spelling of 2651879 in words is "two million, six hundred fifty-one thousand, eight hundred seventy-nine".