28294323 has 8 divisors (see below), whose sum is σ = 37944528. Its totient is φ = 18753504.

The previous prime is 28294319. The next prime is 28294327. The reversal of 28294323 is 32349282.

It is an interprime number because it is at equal distance from previous prime (28294319) and next prime (28294327).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28294323 - 2² = 28294319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28294327) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26740 + ... + 27777.

It is an arithmetic number, because the mean of its divisors is an integer number (4743066).

Almost surely, 2^28294323 is an apocalyptic number.

28294323 is a deficient number, since it is larger than the sum of its proper divisors (9650205).

28294323 is a wasteful number, since it uses less digits than its factorization.

28294323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54693.

The product of its digits is 20736, while the sum is 33.

The square root of 28294323 is about 5319.2408292913. The cubic root of 28294323 is about 304.7191645882.

The spelling of 28294323 in words is "twenty-eight million, two hundred ninety-four thousand, three hundred twenty-three".