28898375 has 16 divisors (see below), whose sum is σ = 39345696. Its totient is φ = 21016000.

The previous prime is 28898357. The next prime is 28898381. The reversal of 28898375 is 57389882.

It is not a de Polignac number, because 28898375 - 2¹⁴ = 28881991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9134 + ... + 11883.

It is an arithmetic number, because the mean of its divisors is an integer number (2459106).

Almost surely, 2^28898375 is an apocalyptic number.

28898375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28898375 is a deficient number, since it is larger than the sum of its proper divisors (10447321).

28898375 is a wasteful number, since it uses less digits than its factorization.

28898375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21043 (or 21033 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 28898375 is about 5375.7208818911. The cubic root of 28898375 is about 306.8723841556.

The spelling of 28898375 in words is "twenty-eight million, eight hundred ninety-eight thousand, three hundred seventy-five".