2685571 has 8 divisors (see below), whose sum is σ = 3152480. Its totient is φ = 2239488.

The previous prime is 2685547. The next prime is 2685577. The reversal of 2685571 is 1755862.

2685571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a 10-Lehmer number, since φ(2685571) divides (2685571-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 2685571 - 2⁵ = 2685539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2685577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4926 + ... + 5443.

It is an arithmetic number, because the mean of its divisors is an integer number (394060).

2^2685571 is an apocalyptic number.

2685571 is a deficient number, since it is larger than the sum of its proper divisors (466909).

2685571 is a wasteful number, since it uses less digits than its factorization.

2685571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10413.

The product of its digits is 16800, while the sum is 34.

The square root of 2685571 is about 1638.7711859805. The cubic root of 2685571 is about 138.9991718806. Note that the first 3 decimals are identical.

The spelling of 2685571 in words is "two million, six hundred eighty-five thousand, five hundred seventy-one".