28343325 has 12 divisors (see below), whose sum is σ = 46861088. Its totient is φ = 15116400.

The previous prime is 28343323. The next prime is 28343339. The reversal of 28343325 is 52334382.

It is not a de Polignac number, because 28343325 - 2¹ = 28343323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28343292 and 28343301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28343323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188881 + ... + 189030.

Almost surely, 2^28343325 is an apocalyptic number.

28343325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28343325 is a deficient number, since it is larger than the sum of its proper divisors (18517763).

28343325 is a wasteful number, since it uses less digits than its factorization.

28343325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377924 (or 377919 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 28343325 is about 5323.8449451501. The cubic root of 28343325 is about 304.8949741407.

The spelling of 28343325 in words is "twenty-eight million, three hundred forty-three thousand, three hundred twenty-five".