28454011 has 2 divisors, whose sum is σ = 28454012. Its totient is φ = 28454010.

The previous prime is 28454009. The next prime is 28454021. The reversal of 28454011 is 11045482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28454011 - 2¹ = 28454009 is a prime.

Together with 28454009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28454021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14227005 + 14227006.

It is an arithmetic number, because the mean of its divisors is an integer number (14227006).

Almost surely, 2^28454011 is an apocalyptic number.

28454011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28454011 is an equidigital number, since it uses as much as digits as its factorization.

28454011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 28454011 is about 5334.2301225200. The cubic root of 28454011 is about 305.2913493005.

Adding to 28454011 its reverse (11045482), we get a palindrome (39499493).

The spelling of 28454011 in words is "twenty-eight million, four hundred fifty-four thousand, eleven".