28349627 has 4 divisors (see below), whose sum is σ = 28439376. Its totient is φ = 28259880.

The previous prime is 28349611. The next prime is 28349663. The reversal of 28349627 is 72694382.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28349627 - 2⁴ = 28349611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28345627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44399 + ... + 45032.

It is an arithmetic number, because the mean of its divisors is an integer number (7109844).

Almost surely, 2^28349627 is an apocalyptic number.

28349627 is a deficient number, since it is larger than the sum of its proper divisors (89749).

28349627 is an equidigital number, since it uses as much as digits as its factorization.

28349627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89748.

The product of its digits is 145152, while the sum is 41.

The square root of 28349627 is about 5324.4367777259. The cubic root of 28349627 is about 304.9175697693.

The spelling of 28349627 in words is "twenty-eight million, three hundred forty-nine thousand, six hundred twenty-seven".