28824605 has 16 divisors (see below), whose sum is σ = 36960624. Its totient is φ = 21504000.

The previous prime is 28824581. The next prime is 28824611. The reversal of 28824605 is 50642882.

It can be written as a sum of positive squares in 8 ways, for example, as 1503076 + 27321529 = 1226^2 + 5227^2 .

It is not a de Polignac number, because 28824605 - 2¹⁶ = 28759069 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, 8105 + ... + 11105.

It is an arithmetic number, because the mean of its divisors is an integer number (2310039).

Almost surely, 2^28824605 is an apocalyptic number.

It is an amenable number.

28824605 is a deficient number, since it is larger than the sum of its proper divisors (8136019).

28824605 is a wasteful number, since it uses less digits than its factorization.

28824605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 28824605 is about 5368.8550921030. The cubic root of 28824605 is about 306.6110399787.

The spelling of 28824605 in words is "twenty-eight million, eight hundred twenty-four thousand, six hundred five".