28603948 has 24 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 13781760.

The previous prime is 28603931. The next prime is 28603957. The reversal of 28603948 is 84930682.

It is a self number, because there is not a number n which added to its sum of digits gives 28603948.

It is an unprimeable number.

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, 47940 + ... + 48532.

It is an arithmetic number, because the mean of its divisors is an integer number (2162160).

Almost surely, 2^28603948 is an apocalyptic number.

It is an amenable number.

28603948 is a deficient number, since it is larger than the sum of its proper divisors (23287892).

28603948 is a wasteful number, since it uses less digits than its factorization.

28603948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 28603948 is about 5348.2658871825. The cubic root of 28603948 is about 305.8266493617.

The spelling of 28603948 in words is "twenty-eight million, six hundred three thousand, nine hundred forty-eight".