28151843 has 2 divisors, whose sum is σ = 28151844. Its totient is φ = 28151842.

The previous prime is 28151833. The next prime is 28151861. The reversal of 28151843 is 34815182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28151843 - 2⁸ = 28151587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28151833) 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, 14075921 + 14075922.

It is an arithmetic number, because the mean of its divisors is an integer number (14075922).

Almost surely, 2^28151843 is an apocalyptic number.

28151843 is a deficient number, since it is larger than the sum of its proper divisors (1).

28151843 is an equidigital number, since it uses as much as digits as its factorization.

28151843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 32.

The square root of 28151843 is about 5305.8310376415. The cubic root of 28151843 is about 304.2068183771.

The spelling of 28151843 in words is "twenty-eight million, one hundred fifty-one thousand, eight hundred forty-three".