6081639 has 16 divisors (see below), whose sum is σ = 8332800. Its totient is φ = 3944160.

The previous prime is 6081629. The next prime is 6081671. The reversal of 6081639 is 9361806.

It is a de Polignac number, because none of the positive numbers 2^k-6081639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6081629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30462 + ... + 30660.

It is an arithmetic number, because the mean of its divisors is an integer number (520800).

Almost surely, 2^6081639 is an apocalyptic number.

6081639 is a deficient number, since it is larger than the sum of its proper divisors (2251161).

6081639 is a wasteful number, since it uses less digits than its factorization.

6081639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 6081639 is about 2466.0979299290. The cubic root of 6081639 is about 182.5325043749.

The spelling of 6081639 in words is "six million, eighty-one thousand, six hundred thirty-nine".