28411291 has 2 divisors, whose sum is σ = 28411292. Its totient is φ = 28411290.

The previous prime is 28411241. The next prime is 28411303. The reversal of 28411291 is 19211482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28411291 - 2¹¹ = 28409243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28411231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14205645 + 14205646.

It is an arithmetic number, because the mean of its divisors is an integer number (14205646).

Almost surely, 2^28411291 is an apocalyptic number.

28411291 is a deficient number, since it is larger than the sum of its proper divisors (1).

28411291 is an equidigital number, since it uses as much as digits as its factorization.

28411291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 28411291 is about 5330.2242917161. The cubic root of 28411291 is about 305.1384876779.

The spelling of 28411291 in words is "twenty-eight million, four hundred eleven thousand, two hundred ninety-one".