28753322 has 24 divisors (see below), whose sum is σ = 47238156. Its totient is φ = 13118976.

The previous prime is 28753279. The next prime is 28753339. The reversal of 28753322 is 22335782.

It can be written as a sum of positive squares in 6 ways, for example, as 8059921 + 20693401 = 2839^2 + 4549^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32348 + ... + 33224.

Almost surely, 2^28753322 is an apocalyptic number.

28753322 is a deficient number, since it is larger than the sum of its proper divisors (18484834).

28753322 is a wasteful number, since it uses less digits than its factorization.

28753322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 989 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 28753322 is about 5362.2124165311. The cubic root of 28753322 is about 306.3580825227.

The spelling of 28753322 in words is "twenty-eight million, seven hundred fifty-three thousand, three hundred twenty-two".