28303479 has 16 divisors (see below), whose sum is σ = 42071040. Its totient is φ = 18806040.

The previous prime is 28303463. The next prime is 28303493. The reversal of 28303479 is 97430382.

It is not a de Polignac number, because 28303479 - 2⁴ = 28303463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28303439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7354 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (2629440).

Almost surely, 2^28303479 is an apocalyptic number.

28303479 is a deficient number, since it is larger than the sum of its proper divisors (13767561).

28303479 is a wasteful number, since it uses less digits than its factorization.

28303479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507 (or 3501 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 28303479 is about 5320.1014088079. The cubic root of 28303479 is about 304.7520299298.

It can be divided in two parts, 28303 and 479, that added together give a palindrome (28782).

The spelling of 28303479 in words is "twenty-eight million, three hundred three thousand, four hundred seventy-nine".