28741085 has 4 divisors (see below), whose sum is σ = 34489308. Its totient is φ = 22992864.

The previous prime is 28741079. The next prime is 28741087. The reversal of 28741085 is 58014782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13980121 + 14760964 = 3739^2 + 3842^2 .

It is a cyclic number.

It is not a de Polignac number, because 28741085 - 2¹² = 28736989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28741087) 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, 2874104 + ... + 2874113.

It is an arithmetic number, because the mean of its divisors is an integer number (8622327).

Almost surely, 2^28741085 is an apocalyptic number.

It is an amenable number.

28741085 is a deficient number, since it is larger than the sum of its proper divisors (5748223).

28741085 is an equidigital number, since it uses as much as digits as its factorization.

28741085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748222.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 28741085 is about 5361.0712548893. The cubic root of 28741085 is about 306.3146158257.

The spelling of 28741085 in words is "twenty-eight million, seven hundred forty-one thousand, eighty-five".