6614639 has 16 divisors (see below), whose sum is σ = 7326720. Its totient is φ = 5950560.

The previous prime is 6614623. The next prime is 6614651. The reversal of 6614639 is 9364166.

It is not a de Polignac number, because 6614639 - 2⁴ = 6614623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6614599 and 6614608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6614609) 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, 31244 + ... + 31454.

It is an arithmetic number, because the mean of its divisors is an integer number (457920).

Almost surely, 2^6614639 is an apocalyptic number.

6614639 is a deficient number, since it is larger than the sum of its proper divisors (712081).

6614639 is a wasteful number, since it uses less digits than its factorization.

6614639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its digits is 23328, while the sum is 35.

The square root of 6614639 is about 2571.8940491397. The cubic root of 6614639 is about 187.7163275021.

The spelling of 6614639 in words is "six million, six hundred fourteen thousand, six hundred thirty-nine".