28606685 has 8 divisors (see below), whose sum is σ = 36134880. Its totient is φ = 21680784.

The previous prime is 28606679. The next prime is 28606693. The reversal of 28606685 is 58660682.

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 28606685 - 2⁸ = 28606429 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150467 + ... + 150656.

It is an arithmetic number, because the mean of its divisors is an integer number (4516860).

Almost surely, 2^28606685 is an apocalyptic number.

It is an amenable number.

28606685 is a deficient number, since it is larger than the sum of its proper divisors (7528195).

28606685 is a wasteful number, since it uses less digits than its factorization.

28606685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301147.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 28606685 is about 5348.5217583927. The cubic root of 28606685 is about 305.8364035029.

The spelling of 28606685 in words is "twenty-eight million, six hundred six thousand, six hundred eighty-five".