28823849 has 2 divisors, whose sum is σ = 28823850. Its totient is φ = 28823848.

The previous prime is 28823843. The next prime is 28823863. The reversal of 28823849 is 94832882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28729600 + 94249 = 5360^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 28823849 - 2²⁴ = 12046633 is a prime.

It is not a weakly prime, because it can be changed into another prime (28823843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14411924 + 14411925.

It is an arithmetic number, because the mean of its divisors is an integer number (14411925).

Almost surely, 2^28823849 is an apocalyptic number.

It is an amenable number.

28823849 is a deficient number, since it is larger than the sum of its proper divisors (1).

28823849 is an equidigital number, since it uses as much as digits as its factorization.

28823849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 44.

The square root of 28823849 is about 5368.7846855690. The cubic root of 28823849 is about 306.6083593987.

The spelling of 28823849 in words is "twenty-eight million, eight hundred twenty-three thousand, eight hundred forty-nine".