28633811 has 2 divisors, whose sum is σ = 28633812. Its totient is φ = 28633810.

The previous prime is 28633799. The next prime is 28633823. The reversal of 28633811 is 11833682.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (28633799) and next prime (28633823).

It is a cyclic number.

It is not a de Polignac number, because 28633811 - 2¹⁴ = 28617427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28633511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14316905 + 14316906.

It is an arithmetic number, because the mean of its divisors is an integer number (14316906).

Almost surely, 2^28633811 is an apocalyptic number.

28633811 is a deficient number, since it is larger than the sum of its proper divisors (1).

28633811 is an equidigital number, since it uses as much as digits as its factorization.

28633811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 28633811 is about 5351.0569983883. The cubic root of 28633811 is about 305.9330417237.

The spelling of 28633811 in words is "twenty-eight million, six hundred thirty-three thousand, eight hundred eleven".