28680955 has 16 divisors (see below), whose sum is σ = 36578304. Its totient is φ = 21514240.

The previous prime is 28680941. The next prime is 28680959. The reversal of 28680955 is 55908682.

It is not a de Polignac number, because 28680955 - 2¹⁵ = 28648187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28680959) 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, 32115 + ... + 32995.

It is an arithmetic number, because the mean of its divisors is an integer number (2286144).

Almost surely, 2^28680955 is an apocalyptic number.

28680955 is a deficient number, since it is larger than the sum of its proper divisors (7897349).

28680955 is a wasteful number, since it uses less digits than its factorization.

28680955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 28680955 is about 5355.4602976775. The cubic root of 28680955 is about 306.1008503218.

The spelling of 28680955 in words is "twenty-eight million, six hundred eighty thousand, nine hundred fifty-five".