4139643 has 8 divisors (see below), whose sum is σ = 5610256. Its totient is φ = 2714400.

The previous prime is 4139627. The next prime is 4139659. The reversal of 4139643 is 3469314.

It is an interprime number because it is at equal distance from previous prime (4139627) and next prime (4139659).

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

It is not a de Polignac number, because 4139643 - 2⁴ = 4139627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4139643.

It is not an unprimeable number, because it can be changed into a prime (4131643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11128 + ... + 11493.

It is an arithmetic number, because the mean of its divisors is an integer number (701282).

Almost surely, 2^4139643 is an apocalyptic number.

4139643 is a deficient number, since it is larger than the sum of its proper divisors (1470613).

4139643 is a wasteful number, since it uses less digits than its factorization.

4139643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22685.

The product of its digits is 7776, while the sum is 30.

The square root of 4139643 is about 2034.6112650823. The cubic root of 4139643 is about 160.5662617874.

The spelling of 4139643 in words is "four million, one hundred thirty-nine thousand, six hundred forty-three".