2953643 has 16 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 2270400.

The previous prime is 2953619. The next prime is 2953661. The reversal of 2953643 is 3463592.

2953643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2953643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2953603) 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 15 ways as a sum of consecutive naturals, for example, 6638 + ... + 7068.

It is an arithmetic number, because the mean of its divisors is an integer number (233280).

2^2953643 is an apocalyptic number.

2953643 is a deficient number, since it is larger than the sum of its proper divisors (778837).

2953643 is a wasteful number, since it uses less digits than its factorization.

2953643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its digits is 19440, while the sum is 32.

The square root of 2953643 is about 1718.6165948227. The cubic root of 2953643 is about 143.4782267750.

The spelling of 2953643 in words is "two million, nine hundred fifty-three thousand, six hundred forty-three".