28982985 has 32 divisors (see below), whose sum is σ = 48294912. Its totient is φ = 14826240.

The previous prime is 28982963. The next prime is 28983001. The reversal of 28982985 is 58928982.

It is not a de Polignac number, because 28982985 - 2⁵ = 28982953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72807 + ... + 73203.

It is an arithmetic number, because the mean of its divisors is an integer number (1509216).

Almost surely, 2^28982985 is an apocalyptic number.

It is an amenable number.

28982985 is a deficient number, since it is larger than the sum of its proper divisors (19311927).

28982985 is a wasteful number, since it uses less digits than its factorization.

28982985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593.

The product of its digits is 829440, while the sum is 51.

The square root of 28982985 is about 5383.5847722498. The cubic root of 28982985 is about 307.1715840653.

The spelling of 28982985 in words is "twenty-eight million, nine hundred eighty-two thousand, nine hundred eighty-five".