2825643 has 8 divisors (see below), whose sum is σ = 3776656. Its totient is φ = 1879200.

The previous prime is 2825639. The next prime is 2825651. The reversal of 2825643 is 3465282.

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

It is not a de Polignac number, because 2825643 - 2² = 2825639 is a prime.

It is a Duffinian number.

2825643 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2825643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2824643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753 + ... + 2493.

It is an arithmetic number, because the mean of its divisors is an integer number (472082).

2^2825643 is an apocalyptic number.

2825643 is a deficient number, since it is larger than the sum of its proper divisors (951013).

2825643 is a wasteful number, since it uses less digits than its factorization.

2825643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285.

The product of its digits is 11520, while the sum is 30.

The square root of 2825643 is about 1680.9649014777. The cubic root of 2825643 is about 141.3749389248.

The spelling of 2825643 in words is "two million, eight hundred twenty-five thousand, six hundred forty-three".