28741075 has 12 divisors (see below), whose sum is σ = 38879208. Its totient is φ = 20902400.

The previous prime is 28741073. The next prime is 28741079. The reversal of 28741075 is 57014782.

It is a happy number.

It is not a de Polignac number, because 28741075 - 2¹ = 28741073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28741075.

It is not an unprimeable number, because it can be changed into a prime (28741073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51982 + ... + 52531.

It is an arithmetic number, because the mean of its divisors is an integer number (3239934).

Almost surely, 2^28741075 is an apocalyptic number.

28741075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28741075 is a deficient number, since it is larger than the sum of its proper divisors (10138133).

28741075 is a wasteful number, since it uses less digits than its factorization.

28741075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104534 (or 104529 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 28741075 is about 5361.0703222398. The cubic root of 28741075 is about 306.3145802999.

The spelling of 28741075 in words is "twenty-eight million, seven hundred forty-one thousand, seventy-five".