28853893 has 2 divisors, whose sum is σ = 28853894. Its totient is φ = 28853892.

The previous prime is 28853887. The next prime is 28853897. The reversal of 28853893 is 39835882.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16016004 + 12837889 = 4002^2 + 3583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28853893 is a prime.

It is a super-3 number, since 3×28853893³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28853897) 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 as a sum of consecutive naturals, namely, 14426946 + 14426947.

It is an arithmetic number, because the mean of its divisors is an integer number (14426947).

Almost surely, 2^28853893 is an apocalyptic number.

It is an amenable number.

28853893 is a deficient number, since it is larger than the sum of its proper divisors (1).

28853893 is an equidigital number, since it uses as much as digits as its factorization.

28853893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 46.

The square root of 28853893 is about 5371.5819829916. The cubic root of 28853893 is about 306.7148515706.

The spelling of 28853893 in words is "twenty-eight million, eight hundred fifty-three thousand, eight hundred ninety-three".