28381595 has 16 divisors (see below), whose sum is σ = 37290240. Its totient is φ = 20565600.

The previous prime is 28381589. The next prime is 28381621. The reversal of 28381595 is 59518382.

It is not a de Polignac number, because 28381595 - 2¹⁰ = 28380571 is a prime.

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, 17426 + ... + 18984.

It is an arithmetic number, because the mean of its divisors is an integer number (2330640).

Almost surely, 2^28381595 is an apocalyptic number.

28381595 is a deficient number, since it is larger than the sum of its proper divisors (8908645).

28381595 is a wasteful number, since it uses less digits than its factorization.

28381595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906.

The product of its digits is 86400, while the sum is 41.

The square root of 28381595 is about 5327.4379395728. The cubic root of 28381595 is about 305.0321385107.

The spelling of 28381595 in words is "twenty-eight million, three hundred eighty-one thousand, five hundred ninety-five".