28796893 has 2 divisors, whose sum is σ = 28796894. Its totient is φ = 28796892.

The previous prime is 28796891. The next prime is 28796899. The reversal of 28796893 is 39869782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23213124 + 5583769 = 4818^2 + 2363^2 .

It is a cyclic number.

It is not a de Polignac number, because 28796893 - 2¹ = 28796891 is a prime.

It is a super-2 number, since 2×28796893² = 1658522092906898, which contains 22 as substring.

Together with 28796891, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28796893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28796891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14398446 + 14398447.

It is an arithmetic number, because the mean of its divisors is an integer number (14398447).

Almost surely, 2^28796893 is an apocalyptic number.

It is an amenable number.

28796893 is a deficient number, since it is larger than the sum of its proper divisors (1).

28796893 is an equidigital number, since it uses as much as digits as its factorization.

28796893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 28796893 is about 5366.2736605581. The cubic root of 28796893 is about 306.5127497675.

The spelling of 28796893 in words is "twenty-eight million, seven hundred ninety-six thousand, eight hundred ninety-three".