28982215 has 16 divisors (see below), whose sum is σ = 35849088. Its totient is φ = 22480416.

The previous prime is 28982207. The next prime is 28982249. The reversal of 28982215 is 51228982.

It is a cyclic number.

It is not a de Polignac number, because 28982215 - 2³ = 28982207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34632 + ... + 35458.

It is an arithmetic number, because the mean of its divisors is an integer number (2240568).

Almost surely, 2^28982215 is an apocalyptic number.

28982215 is a deficient number, since it is larger than the sum of its proper divisors (6866873).

28982215 is a wasteful number, since it uses less digits than its factorization.

28982215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 23040, while the sum is 37.

The square root of 28982215 is about 5383.5132580871. The cubic root of 28982215 is about 307.1688638001.

The spelling of 28982215 in words is "twenty-eight million, nine hundred eighty-two thousand, two hundred fifteen".