2643854 has 4 divisors (see below), whose sum is σ = 3965784. Its totient is φ = 1321926.

The previous prime is 2643853. The next prime is 2643871. The reversal of 2643854 is 4583462.

2643854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 2²¹ + 6⁵ + 4⁴ + 3¹² + 8 + 5⁵ + 4⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 2643854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643853) 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 as a sum of consecutive naturals, namely, 660962 + ... + 660965.

It is an arithmetic number, because the mean of its divisors is an integer number (991446).

2^2643854 is an apocalyptic number.

2643854 is a deficient number, since it is larger than the sum of its proper divisors (1321930).

2643854 is a wasteful number, since it uses less digits than its factorization.

2643854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321929.

The product of its digits is 23040, while the sum is 32.

The square root of 2643854 is about 1625.9932349183. The cubic root of 2643854 is about 138.2756863722.

The spelling of 2643854 in words is "two million, six hundred forty-three thousand, eight hundred fifty-four".