28902323 has 4 divisors (see below), whose sum is σ = 29834688. Its totient is φ = 27969960.

The previous prime is 28902277. The next prime is 28902347. The reversal of 28902323 is 32320982.

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

It is a cyclic number.

It is not a de Polignac number, because 28902323 - 2¹⁴ = 28885939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28902353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466136 + ... + 466197.

It is an arithmetic number, because the mean of its divisors is an integer number (7458672).

Almost surely, 2^28902323 is an apocalyptic number.

28902323 is a deficient number, since it is larger than the sum of its proper divisors (932365).

28902323 is an equidigital number, since it uses as much as digits as its factorization.

28902323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932364.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 28902323 is about 5376.0880759154. The cubic root of 28902323 is about 306.8863581479.

The spelling of 28902323 in words is "twenty-eight million, nine hundred two thousand, three hundred twenty-three".