28950375 has 16 divisors (see below), whose sum is σ = 48174048. Its totient is φ = 15440000.

The previous prime is 28950367. The next prime is 28950377. The reversal of 28950375 is 57305982.

It is not a de Polignac number, because 28950375 - 2³ = 28950367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28950377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38226 + ... + 38975.

It is an arithmetic number, because the mean of its divisors is an integer number (3010878).

Almost surely, 2^28950375 is an apocalyptic number.

28950375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28950375 is a deficient number, since it is larger than the sum of its proper divisors (19223673).

28950375 is an equidigital number, since it uses as much as digits as its factorization.

28950375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77219 (or 77209 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 28950375 is about 5380.5552687432. Note that the first 3 decimals coincide. The cubic root of 28950375 is about 307.0563368549.

The spelling of 28950375 in words is "twenty-eight million, nine hundred fifty thousand, three hundred seventy-five".