28606723 has 12 divisors (see below), whose sum is σ = 30510480. Its totient is φ = 26815536.

The previous prime is 28606717. The next prime is 28606727. The reversal of 28606723 is 32760682.

It is a de Polignac number, because none of the positive numbers 2^k-28606723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28606727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38986 + ... + 39712.

It is an arithmetic number, because the mean of its divisors is an integer number (2542540).

Almost surely, 2^28606723 is an apocalyptic number.

28606723 is a deficient number, since it is larger than the sum of its proper divisors (1903757).

28606723 is a wasteful number, since it uses less digits than its factorization.

28606723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 28606723 is about 5348.5253107749. The cubic root of 28606723 is about 305.8365389232.

The spelling of 28606723 in words is "twenty-eight million, six hundred six thousand, seven hundred twenty-three".