7939641 has 8 divisors (see below), whose sum is σ = 10599264. Its totient is φ = 5286560.

The previous prime is 7939637. The next prime is 7939643. The reversal of 7939641 is 1469397.

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

It is a cyclic number.

It is not a de Polignac number, because 7939641 - 2² = 7939637 is a prime.

7939641 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7939641.

It is not an unprimeable number, because it can be changed into a prime (7939643) 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, 3550 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (1324908).

Almost surely, 2^7939641 is an apocalyptic number.

It is an amenable number.

7939641 is a deficient number, since it is larger than the sum of its proper divisors (2659623).

7939641 is a wasteful number, since it uses less digits than its factorization.

7939641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271.

The product of its digits is 40824, while the sum is 39.

The square root of 7939641 is about 2817.7368578347. The cubic root of 7939641 is about 199.4957380010.

The spelling of 7939641 in words is "seven million, nine hundred thirty-nine thousand, six hundred forty-one".