28832745 has 16 divisors (see below), whose sum is σ = 46783872. Its totient is φ = 15160320.

The previous prime is 28832743. The next prime is 28832779. The reversal of 28832745 is 54723882.

It is not a de Polignac number, because 28832745 - 2¹ = 28832743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28832743) 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, 12472 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (2923992).

Almost surely, 2^28832745 is an apocalyptic number.

It is an amenable number.

28832745 is a deficient number, since it is larger than the sum of its proper divisors (17951127).

28832745 is a wasteful number, since it uses less digits than its factorization.

28832745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27152.

The product of its digits is 107520, while the sum is 39.

The square root of 28832745 is about 5369.6131145549. The cubic root of 28832745 is about 306.6398993388.

It can be divided in two parts, 288 and 32745, that added together give a palindrome (33033).

The spelling of 28832745 in words is "twenty-eight million, eight hundred thirty-two thousand, seven hundred forty-five".