28410649 has 4 divisors (see below), whose sum is σ = 28618164. Its totient is φ = 28203136.

The previous prime is 28410637. The next prime is 28410661. The reversal of 28410649 is 94601482.

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

It is an interprime number because it is at equal distance from previous prime (28410637) and next prime (28410661).

It can be written as a sum of positive squares in 2 ways, for example, as 21483225 + 6927424 = 4635^2 + 2632^2 .

It is a cyclic number.

It is not a de Polignac number, because 28410649 - 2⁵ = 28410617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28410619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103552 + ... + 103825.

It is an arithmetic number, because the mean of its divisors is an integer number (7154541).

Almost surely, 2^28410649 is an apocalyptic number.

It is an amenable number.

28410649 is a deficient number, since it is larger than the sum of its proper divisors (207515).

28410649 is a wasteful number, since it uses less digits than its factorization.

28410649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207514.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 28410649 is about 5330.1640687694. The cubic root of 28410649 is about 305.1361892914.

The spelling of 28410649 in words is "twenty-eight million, four hundred ten thousand, six hundred forty-nine".