28746241 has 4 divisors (see below), whose sum is σ = 29042692. Its totient is φ = 28449792.

The previous prime is 28746209. The next prime is 28746253. The reversal of 28746241 is 14264782.

It is a happy number.

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 12222016 + 16524225 = 3496^2 + 4065^2 .

It is a cyclic number.

It is not a de Polignac number, because 28746241 - 2⁵ = 28746209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28746197 and 28746206.

It is not an unprimeable number, because it can be changed into a prime (28740241) 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, 148080 + ... + 148273.

It is an arithmetic number, because the mean of its divisors is an integer number (7260673).

Almost surely, 2^28746241 is an apocalyptic number.

It is an amenable number.

28746241 is a deficient number, since it is larger than the sum of its proper divisors (296451).

28746241 is an equidigital number, since it uses as much as digits as its factorization.

28746241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296450.

The product of its digits is 21504, while the sum is 34.

The square root of 28746241 is about 5361.5521073659. The cubic root of 28746241 is about 306.3329318093.

The spelling of 28746241 in words is "twenty-eight million, seven hundred forty-six thousand, two hundred forty-one".