28073325 has 36 divisors (see below), whose sum is σ = 53999520. Its totient is φ = 12831840.

The previous prime is 28073299. The next prime is 28073369. The reversal of 28073325 is 52337082.

It is not a de Polignac number, because 28073325 - 2⁵ = 28073293 is a prime.

It is a super-2 number, since 2×28073325² = 1576223153111250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28073292 and 28073301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 145 + ... + 7494.

Almost surely, 2^28073325 is an apocalyptic number.

28073325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28073325 is a deficient number, since it is larger than the sum of its proper divisors (25926195).

28073325 is a wasteful number, since it uses less digits than its factorization.

28073325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7666 (or 7654 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 28073325 is about 5298.4266532623. The cubic root of 28073325 is about 303.9237350529.

The spelling of 28073325 in words is "twenty-eight million, seventy-three thousand, three hundred twenty-five".