28533026 has 4 divisors (see below), whose sum is σ = 42799542. Its totient is φ = 14266512.

The previous prime is 28533017. The next prime is 28533047. The reversal of 28533026 is 62033582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14478025 + 14055001 = 3805^2 + 3749^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28533026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7133255 + ... + 7133258.

Almost surely, 2^28533026 is an apocalyptic number.

28533026 is a deficient number, since it is larger than the sum of its proper divisors (14266516).

28533026 is a wasteful number, since it uses less digits than its factorization.

28533026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266515.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 28533026 is about 5341.6313987395. The cubic root of 28533026 is about 305.5736797526.

The spelling of 28533026 in words is "twenty-eight million, five hundred thirty-three thousand, twenty-six".