28650693 has 8 divisors (see below), whose sum is σ = 38684800. Its totient is φ = 18858528.

The previous prime is 28650659. The next prime is 28650707. The reversal of 28650693 is 39605682.

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

It is not a de Polignac number, because 28650693 - 2²² = 24456389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650653) 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 7 ways as a sum of consecutive naturals, for example, 60208 + ... + 60681.

It is an arithmetic number, because the mean of its divisors is an integer number (4835600).

Almost surely, 2^28650693 is an apocalyptic number.

It is an amenable number.

28650693 is a deficient number, since it is larger than the sum of its proper divisors (10034107).

28650693 is a wasteful number, since it uses less digits than its factorization.

28650693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120971.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 28650693 is about 5352.6342113019. The cubic root of 28650693 is about 305.9931541892.

The spelling of 28650693 in words is "twenty-eight million, six hundred fifty thousand, six hundred ninety-three".