104639728 has 10 divisors (see below), whose sum is σ = 202739504. Its totient is φ = 52319856.

The previous prime is 104639699. The next prime is 104639741. The reversal of 104639728 is 827936401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3269976 + ... + 3270007.

Almost surely, 2^104639728 is an apocalyptic number.

It is an amenable number.

104639728 is a deficient number, since it is larger than the sum of its proper divisors (98099776).

104639728 is an equidigital number, since it uses as much as digits as its factorization.

104639728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6539991 (or 6539985 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 104639728 is about 10229.3561869748. The cubic root of 104639728 is about 471.2292073371.

The spelling of 104639728 in words is "one hundred four million, six hundred thirty-nine thousand, seven hundred twenty-eight".