28463104 has 26 divisors (see below), whose sum is σ = 56927450. Its totient is φ = 14229504.

The previous prime is 28463077. The next prime is 28463129. The reversal of 28463104 is 40136482.

It can be written as a sum of positive squares in only one way, i.e., 27541504 + 921600 = 5248^2 + 960^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622 + ... + 7570.

Almost surely, 2^28463104 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 28463104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28463725).

28463104 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28463104 is an frugal number, since it uses more digits than its factorization.

28463104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973 (or 6951 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 28463104 is about 5335.0823798701. The cubic root of 28463104 is about 305.3238663164.

Adding to 28463104 its reverse (40136482), we get a palindrome (68599586).

The spelling of 28463104 in words is "twenty-eight million, four hundred sixty-three thousand, one hundred four".