2721028343 has 16 divisors (see below), whose sum is σ = 2993293440. Its totient is φ = 2453004000.

The previous prime is 2721028337. The next prime is 2721028351. The reversal of 2721028343 is 3438201272.

It is a cyclic number.

It is not a de Polignac number, because 2721028343 - 2¹⁰ = 2721027319 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 (2721028543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669668 + ... + 673718.

It is an arithmetic number, because the mean of its divisors is an integer number (187080840).

Almost surely, 2^2721028343 is an apocalyptic number.

2721028343 is a deficient number, since it is larger than the sum of its proper divisors (272265097).

2721028343 is a wasteful number, since it uses less digits than its factorization.

2721028343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 2721028343 is about 52163.4770984450. The cubic root of 2721028343 is about 1396.0823027300.

The spelling of 2721028343 in words is "two billion, seven hundred twenty-one million, twenty-eight thousand, three hundred forty-three".