6458643 has 16 divisors (see below), whose sum is σ = 9792640. Its totient is φ = 4204872.

The previous prime is 6458629. The next prime is 6458681. The reversal of 6458643 is 3468546.

6458643 is a `hidden beast` number, since 6 + 4 + 5 + 8 + 643 = 666.

It is not a de Polignac number, because 6458643 - 2¹⁴ = 6442259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6458598 and 6458607.

It is not an unprimeable number, because it can be changed into a prime (6458603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621 + ... + 3942.

It is an arithmetic number, because the mean of its divisors is an integer number (612040).

Almost surely, 2^6458643 is an apocalyptic number.

6458643 is a deficient number, since it is larger than the sum of its proper divisors (3333997).

6458643 is a wasteful number, since it uses less digits than its factorization.

6458643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615 (or 5609 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 6458643 is about 2541.3860391527. The cubic root of 6458643 is about 186.2289065192.

The spelling of 6458643 in words is "six million, four hundred fifty-eight thousand, six hundred forty-three".