28275361 has 8 divisors (see below), whose sum is σ = 28717920. Its totient is φ = 27835392.

The previous prime is 28275353. The next prime is 28275367. The reversal of 28275361 is 16357282.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28275361 - 2³ = 28275353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28275367) 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, 36385 + ... + 37153.

It is an arithmetic number, because the mean of its divisors is an integer number (3589740).

Almost surely, 2^28275361 is an apocalyptic number.

It is an amenable number.

28275361 is a deficient number, since it is larger than the sum of its proper divisors (442559).

28275361 is an equidigital number, since it uses as much as digits as its factorization.

28275361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295.

The product of its digits is 20160, while the sum is 34.

The square root of 28275361 is about 5317.4581333566. The cubic root of 28275361 is about 304.6510781851.

The spelling of 28275361 in words is "twenty-eight million, two hundred seventy-five thousand, three hundred sixty-one".