28850685 has 16 divisors (see below), whose sum is σ = 46681920. Its totient is φ = 15213440.

The previous prime is 28850681. The next prime is 28850687. The reversal of 28850685 is 58605882.

It is not a de Polignac number, because 28850685 - 2² = 28850681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28850681) 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, 9471 + ... + 12140.

It is an arithmetic number, because the mean of its divisors is an integer number (2917620).

Almost surely, 2^28850685 is an apocalyptic number.

It is an amenable number.

28850685 is a deficient number, since it is larger than the sum of its proper divisors (17831235).

28850685 is a wasteful number, since it uses less digits than its factorization.

28850685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21708.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 28850685 is about 5371.2833661984. The cubic root of 28850685 is about 306.7034842112.

The spelling of 28850685 in words is "twenty-eight million, eight hundred fifty thousand, six hundred eighty-five".