28463443 has 8 divisors (see below), whose sum is σ = 29779200. Its totient is φ = 27154248.

The previous prime is 28463441. The next prime is 28463453. The reversal of 28463443 is 34436482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28463443 - 2¹ = 28463441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28463399 and 28463408.

It is not an unprimeable number, because it can be changed into a prime (28463441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8688 + ... + 11506.

It is an arithmetic number, because the mean of its divisors is an integer number (3722400).

Almost surely, 2^28463443 is an apocalyptic number.

28463443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28463443 is a deficient number, since it is larger than the sum of its proper divisors (1315757).

28463443 is a wasteful number, since it uses less digits than its factorization.

28463443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281.

The product of its digits is 55296, while the sum is 34.

The square root of 28463443 is about 5335.1141506063. The cubic root of 28463443 is about 305.3250784631.

The spelling of 28463443 in words is "twenty-eight million, four hundred sixty-three thousand, four hundred forty-three".