28193295 has 32 divisors (see below), whose sum is σ = 48932352. Its totient is φ = 13779072.

The previous prime is 28193287. The next prime is 28193317. The reversal of 28193295 is 59239182.

It is not a de Polignac number, because 28193295 - 2³ = 28193287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 31342 + ... + 32228.

It is an arithmetic number, because the mean of its divisors is an integer number (1529136).

Almost surely, 2^28193295 is an apocalyptic number.

28193295 is a deficient number, since it is larger than the sum of its proper divisors (20739057).

28193295 is a wasteful number, since it uses less digits than its factorization.

28193295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071.

The product of its digits is 38880, while the sum is 39.

The square root of 28193295 is about 5309.7358691370. The cubic root of 28193295 is about 304.3560542777.

The spelling of 28193295 in words is "twenty-eight million, one hundred ninety-three thousand, two hundred ninety-five".