28763375 has 8 divisors (see below), whose sum is σ = 35896848. Its totient is φ = 23010600.

The previous prime is 28763353. The next prime is 28763377. The reversal of 28763375 is 57336782.

It is not a de Polignac number, because 28763375 - 2¹⁶ = 28697839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28763377) 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 7 ways as a sum of consecutive naturals, for example, 114929 + ... + 115178.

It is an arithmetic number, because the mean of its divisors is an integer number (4487106).

Almost surely, 2^28763375 is an apocalyptic number.

28763375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28763375 is a deficient number, since it is larger than the sum of its proper divisors (7133473).

28763375 is an equidigital number, since it uses as much as digits as its factorization.

28763375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230122 (or 230112 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 28763375 is about 5363.1497275388. The cubic root of 28763375 is about 306.3937822695.

The spelling of 28763375 in words is "twenty-eight million, seven hundred sixty-three thousand, three hundred seventy-five".