28049011 has 2 divisors, whose sum is σ = 28049012. Its totient is φ = 28049010.

The previous prime is 28048981. The next prime is 28049033. The reversal of 28049011 is 11094082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28049011 - 2⁹ = 28048499 is a prime.

It is not a weakly prime, because it can be changed into another prime (28049311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14024505 + 14024506.

It is an arithmetic number, because the mean of its divisors is an integer number (14024506).

Almost surely, 2^28049011 is an apocalyptic number.

28049011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28049011 is an equidigital number, since it uses as much as digits as its factorization.

28049011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 28049011 is about 5296.1317015346. The cubic root of 28049011 is about 303.8359680348.

The spelling of 28049011 in words is "twenty-eight million, forty-nine thousand, eleven".