2721879 has 12 divisors (see below), whose sum is σ = 3954496. Its totient is φ = 1804032.

The previous prime is 2721877. The next prime is 2721899. The reversal of 2721879 is 9781272.

It is not a de Polignac number, because 2721879 - 2¹ = 2721877 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 (2721871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 954 + ... + 2520.

2^2721879 is an apocalyptic number.

2721879 is a deficient number, since it is larger than the sum of its proper divisors (1232617).

2721879 is a wasteful number, since it uses less digits than its factorization.

2721879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766 (or 1763 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2721879 is about 1649.8118074496. The cubic root of 2721879 is about 139.6227770215.

It can be divided in two parts, 2721 and 879, that added together give a square (3600 = 60²).

The spelling of 2721879 in words is "two million, seven hundred twenty-one thousand, eight hundred seventy-nine".