28232263 has 2 divisors, whose sum is σ = 28232264. Its totient is φ = 28232262.

The previous prime is 28232251. The next prime is 28232273. The reversal of 28232263 is 36223282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28232263 - 2¹³ = 28224071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28232213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14116131 + 14116132.

It is an arithmetic number, because the mean of its divisors is an integer number (14116132).

Almost surely, 2^28232263 is an apocalyptic number.

28232263 is a deficient number, since it is larger than the sum of its proper divisors (1).

28232263 is an equidigital number, since it uses as much as digits as its factorization.

28232263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

The square root of 28232263 is about 5313.4040877765. The cubic root of 28232263 is about 304.4962139227.

The spelling of 28232263 in words is "twenty-eight million, two hundred thirty-two thousand, two hundred sixty-three".