28273346 has 16 divisors (see below), whose sum is σ = 45214200. Its totient is φ = 13213440.

The previous prime is 28273339. The next prime is 28273351. The reversal of 28273346 is 64337282.

It can be written as a sum of positive squares in 4 ways, for example, as 20349121 + 7924225 = 4511^2 + 2815^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2276 + ... + 7856.

Almost surely, 2^28273346 is an apocalyptic number.

28273346 is a deficient number, since it is larger than the sum of its proper divisors (16940854).

28273346 is a wasteful number, since it uses less digits than its factorization.

28273346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749.

The product of its digits is 48384, while the sum is 35.

The square root of 28273346 is about 5317.2686597538. The cubic root of 28273346 is about 304.6438411834.

The spelling of 28273346 in words is "twenty-eight million, two hundred seventy-three thousand, three hundred forty-six".