28603716 has 12 divisors (see below), whose sum is σ = 66742032. Its totient is φ = 9534568.

The previous prime is 28603711. The next prime is 28603717. The reversal of 28603716 is 61730682.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (28603711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191810 + ... + 1191833.

It is an arithmetic number, because the mean of its divisors is an integer number (5561836).

Almost surely, 2^28603716 is an apocalyptic number.

It is an amenable number.

28603716 is an abundant number, since it is smaller than the sum of its proper divisors (38138316).

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

28603716 is a wasteful number, since it uses less digits than its factorization.

28603716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383650 (or 2383648 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28603716 is about 5348.2441978653. The cubic root of 28603716 is about 305.8258225298.

The spelling of 28603716 in words is "twenty-eight million, six hundred three thousand, seven hundred sixteen".