2643654 has 16 divisors (see below), whose sum is σ = 5694192. Its totient is φ = 813408.

The previous prime is 2643647. The next prime is 2643659. The reversal of 2643654 is 4563462.

It is a d-powerful number, because it can be written as 2⁹ + 6 + 4² + 3¹³ + 6³ + 5 + 4¹⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643659) 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, 16869 + ... + 17024.

It is an arithmetic number, because the mean of its divisors is an integer number (355887).

2^2643654 is an apocalyptic number.

2643654 is an abundant number, since it is smaller than the sum of its proper divisors (3050538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2643654 is a wasteful number, since it uses less digits than its factorization.

2643654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33911.

The product of its digits is 17280, while the sum is 30.

The square root of 2643654 is about 1625.9317328843. The cubic root of 2643654 is about 138.2721995641.

The spelling of 2643654 in words is "two million, six hundred forty-three thousand, six hundred fifty-four".