28496864 has 48 divisors (see below), whose sum is σ = 62097840. Its totient is φ = 12764160.

The previous prime is 28496863. The next prime is 28496869. The reversal of 28496864 is 46869482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28496863) 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 7 ways as a sum of consecutive naturals, for example, 25142 + ... + 26250.

It is an arithmetic number, because the mean of its divisors is an integer number (1293705).

Almost surely, 2^28496864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28496864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31048920).

28496864 is an abundant number, since it is smaller than the sum of its proper divisors (33600976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28496864 is a wasteful number, since it uses less digits than its factorization.

28496864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1195 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 28496864 is about 5338.2454046250. The cubic root of 28496864 is about 305.4445331872. Note that the first 3 decimals are identical.

The spelling of 28496864 in words is "twenty-eight million, four hundred ninety-six thousand, eight hundred sixty-four".