28153995 has 16 divisors (see below), whose sum is σ = 45404160. Its totient is φ = 14896224.

The previous prime is 28153969. The next prime is 28153999. The reversal of 28153995 is 59935182.

It is not a de Polignac number, because 28153995 - 2⁸ = 28153739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28153999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5485 + ... + 9294.

It is an arithmetic number, because the mean of its divisors is an integer number (2837760).

Almost surely, 2^28153995 is an apocalyptic number.

28153995 is a deficient number, since it is larger than the sum of its proper divisors (17250165).

28153995 is a wasteful number, since it uses less digits than its factorization.

28153995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14914.

The product of its digits is 97200, while the sum is 42.

The square root of 28153995 is about 5306.0338295190. The cubic root of 28153995 is about 304.2145696327.

The spelling of 28153995 in words is "twenty-eight million, one hundred fifty-three thousand, nine hundred ninety-five".