2654821 has 12 divisors (see below), whose sum is σ = 3004128. Its totient is φ = 2340624.

The previous prime is 2654803. The next prime is 2654831. The reversal of 2654821 is 1284562.

It is not a de Polignac number, because 2654821 - 2⁷ = 2654693 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 2654821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3546 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (250344).

2^2654821 is an apocalyptic number.

It is an amenable number.

2654821 is a deficient number, since it is larger than the sum of its proper divisors (349307).

2654821 is a wasteful number, since it uses less digits than its factorization.

2654821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 719 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 2654821 is about 1629.3621451353. The cubic root of 2654821 is about 138.4666169157.

It can be divided in two parts, 26548 and 21, that added together give a square (26569 = 163²).

The spelling of 2654821 in words is "two million, six hundred fifty-four thousand, eight hundred twenty-one".