2708643 has 8 divisors (see below), whose sum is σ = 4127488. Its totient is φ = 1547784.

The previous prime is 2708633. The next prime is 2708647. The reversal of 2708643 is 3468072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2708643 - 2⁵ = 2708611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2708643.

It is not an unprimeable number, because it can be changed into a prime (2708647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64471 + ... + 64512.

It is an arithmetic number, because the mean of its divisors is an integer number (515936).

2^2708643 is an apocalyptic number.

2708643 is a deficient number, since it is larger than the sum of its proper divisors (1418845).

2708643 is a wasteful number, since it uses less digits than its factorization.

2708643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128993.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2708643 is about 1645.7955523090. The cubic root of 2708643 is about 139.3960891627.

It can be divided in two parts, 2 and 708643, that added together give a triangular number (708645 = T₁₁₉₀).

The spelling of 2708643 in words is "two million, seven hundred eight thousand, six hundred forty-three".