28052741 has 8 divisors (see below), whose sum is σ = 29053944. Its totient is φ = 27069120.

The previous prime is 28052681. The next prime is 28052747. The reversal of 28052741 is 14725082.

It can be written as a sum of positive squares in 4 ways, for example, as 184900 + 27867841 = 430^2 + 5279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28052741 is a prime.

It is a super-2 number, since 2×28052741² = 1573912555226162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28052747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (3631743).

Almost surely, 2^28052741 is an apocalyptic number.

It is an amenable number.

28052741 is a deficient number, since it is larger than the sum of its proper divisors (1001203).

28052741 is an equidigital number, since it uses as much as digits as its factorization.

28052741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8791.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 28052741 is about 5296.4838336391. The cubic root of 28052741 is about 303.8494356270.

The spelling of 28052741 in words is "twenty-eight million, fifty-two thousand, seven hundred forty-one".