28645718 has 16 divisors (see below), whose sum is σ = 45347040. Its totient is φ = 13544256.

The previous prime is 28645717. The next prime is 28645723. The reversal of 28645718 is 81754682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28645717) by changing a digit.

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, 596 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (2834190).

Almost surely, 2^28645718 is an apocalyptic number.

28645718 is a deficient number, since it is larger than the sum of its proper divisors (16701322).

28645718 is a wasteful number, since it uses less digits than its factorization.

28645718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111.

The product of its digits is 107520, while the sum is 41.

The square root of 28645718 is about 5352.1694666742. The cubic root of 28645718 is about 305.9754419467.

The spelling of 28645718 in words is "twenty-eight million, six hundred forty-five thousand, seven hundred eighteen".