28023316 has 12 divisors (see below), whose sum is σ = 49119840. Its totient is φ = 13989080.

The previous prime is 28023311. The next prime is 28023337. The reversal of 28023316 is 61332082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28023311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2680 + ... + 7951.

It is an arithmetic number, because the mean of its divisors is an integer number (4093320).

Almost surely, 2^28023316 is an apocalyptic number.

It is an amenable number.

28023316 is a deficient number, since it is larger than the sum of its proper divisors (21096524).

28023316 is a wasteful number, since it uses less digits than its factorization.

28023316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11294 (or 11292 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 28023316 is about 5293.7053185836. The cubic root of 28023316 is about 303.7431608366.

Adding to 28023316 its reverse (61332082), we get a palindrome (89355398).

The spelling of 28023316 in words is "twenty-eight million, twenty-three thousand, three hundred sixteen".