28696093 has 4 divisors (see below), whose sum is σ = 29363488. Its totient is φ = 28028700.

The previous prime is 28696091. The next prime is 28696121. The reversal of 28696093 is 39069682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28696093 - 2¹ = 28696091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 667351 = 28696093 / (2 + 8 + 6 + 9 + 6 + 0 + 9 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28696091) 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, 333633 + ... + 333718.

It is an arithmetic number, because the mean of its divisors is an integer number (7340872).

Almost surely, 2^28696093 is an apocalyptic number.

It is an amenable number.

28696093 is a deficient number, since it is larger than the sum of its proper divisors (667395).

28696093 is an equidigital number, since it uses as much as digits as its factorization.

28696093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667394.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 28696093 is about 5356.8734351299. The cubic root of 28696093 is about 306.1546948755.

The spelling of 28696093 in words is "twenty-eight million, six hundred ninety-six thousand, ninety-three".