28936384 has 14 divisors (see below), whose sum is σ = 57420764. Its totient is φ = 14468160.

The previous prime is 28936381. The next prime is 28936409. The reversal of 28936384 is 48363982.

It is a self number, because there is not a number n which added to its sum of digits gives 28936384.

It is not an unprimeable number, because it can be changed into a prime (28936381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226002 + ... + 226129.

Almost surely, 2^28936384 is an apocalyptic number.

It is an amenable number.

28936384 is a deficient number, since it is larger than the sum of its proper divisors (28484380).

28936384 is an equidigital number, since it uses as much as digits as its factorization.

28936384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452143 (or 452133 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 28936384 is about 5379.2549670005. The cubic root of 28936384 is about 307.0068646408.

The spelling of 28936384 in words is "twenty-eight million, nine hundred thirty-six thousand, three hundred eighty-four".