28948395 has 16 divisors (see below), whose sum is σ = 52934400. Its totient is φ = 13233504.

The previous prime is 28948391. The next prime is 28948411. The reversal of 28948395 is 59384982.

It is not a de Polignac number, because 28948395 - 2² = 28948391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28948391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137745 + ... + 137954.

It is an arithmetic number, because the mean of its divisors is an integer number (3308400).

Almost surely, 2^28948395 is an apocalyptic number.

28948395 is a deficient number, since it is larger than the sum of its proper divisors (23986005).

28948395 is a wasteful number, since it uses less digits than its factorization.

28948395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275714.

The product of its digits is 622080, while the sum is 48.

The square root of 28948395 is about 5380.3712697174. The cubic root of 28948395 is about 307.0493365379.

It can be divided in two parts, 289 and 48395, that added together give a palindrome (48684).

The spelling of 28948395 in words is "twenty-eight million, nine hundred forty-eight thousand, three hundred ninety-five".