7055643 has 16 divisors (see below), whose sum is σ = 10817280. Its totient is φ = 4007136.

The previous prime is 7055627. The next prime is 7055647. The reversal of 7055643 is 3465507.

It is not a de Polignac number, because 7055643 - 2⁴ = 7055627 is a prime.

It is an Ulam number.

7055643 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7055643.

It is not an unprimeable number, because it can be changed into a prime (7055647) 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 15 ways as a sum of consecutive naturals, for example, 2821 + ... + 4697.

It is an arithmetic number, because the mean of its divisors is an integer number (676080).

Almost surely, 2^7055643 is an apocalyptic number.

7055643 is a deficient number, since it is larger than the sum of its proper divisors (3761637).

7055643 is a wasteful number, since it uses less digits than its factorization.

7055643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 7055643 is about 2656.2460352912. The cubic root of 7055643 is about 191.7986441580.

The spelling of 7055643 in words is "seven million, fifty-five thousand, six hundred forty-three".