4973643 has 10 divisors (see below), whose sum is σ = 7429884. Its totient is φ = 3315708.

The previous prime is 4973627. The next prime is 4973653. The reversal of 4973643 is 3463794.

4973643 is a `hidden beast` number, since 4 + 9 + 7 + 3 + 643 = 666.

4973643 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4973643 - 2⁴ = 4973627 is a prime.

4973643 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4973598 and 4973607.

It is not an unprimeable number, because it can be changed into a prime (4973623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30621 + ... + 30782.

Almost surely, 2^4973643 is an apocalyptic number.

4973643 is a deficient number, since it is larger than the sum of its proper divisors (2456241).

4973643 is an equidigital number, since it uses as much as digits as its factorization.

4973643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61415 (or 61406 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 4973643 is about 2230.1665857061. The cubic root of 4973643 is about 170.6965995845.

The spelling of 4973643 in words is "four million, nine hundred seventy-three thousand, six hundred forty-three".