28293335 has 24 divisors (see below), whose sum is σ = 41220576. Its totient is φ = 18553920.

The previous prime is 28293329. The next prime is 28293341. The reversal of 28293335 is 53339282.

It is an interprime number because it is at equal distance from previous prime (28293329) and next prime (28293341).

It is not a de Polignac number, because 28293335 - 2¹⁴ = 28276951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28293295 and 28293304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3125 + ... + 8145.

It is an arithmetic number, because the mean of its divisors is an integer number (1717524).

Almost surely, 2^28293335 is an apocalyptic number.

28293335 is a deficient number, since it is larger than the sum of its proper divisors (12927241).

28293335 is a wasteful number, since it uses less digits than its factorization.

28293335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063 (or 5056 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 28293335 is about 5319.1479580850. The cubic root of 28293335 is about 304.7156177514.

The spelling of 28293335 in words is "twenty-eight million, two hundred ninety-three thousand, three hundred thirty-five".