28814325 has 24 divisors (see below), whose sum is σ = 47952288. Its totient is φ = 15266880.

The previous prime is 28814311. The next prime is 28814333. The reversal of 28814325 is 52341882.

It is not a de Polignac number, because 28814325 - 2⁴ = 28814309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11047 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (1998012).

Almost surely, 2^28814325 is an apocalyptic number.

28814325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28814325 is a deficient number, since it is larger than the sum of its proper divisors (19137963).

28814325 is a wasteful number, since it uses less digits than its factorization.

28814325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2528 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 28814325 is about 5367.8976331521. The cubic root of 28814325 is about 306.5745857495.

The spelling of 28814325 in words is "twenty-eight million, eight hundred fourteen thousand, three hundred twenty-five".