28371263 has 2 divisors, whose sum is σ = 28371264. Its totient is φ = 28371262.

The previous prime is 28371241. The next prime is 28371269. The reversal of 28371263 is 36217382.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28371263 - 2¹² = 28367167 is a prime.

It is equal to p_1763096 and since 28371263 and 1763096 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28371269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14185631 + 14185632.

It is an arithmetic number, because the mean of its divisors is an integer number (14185632).

Almost surely, 2^28371263 is an apocalyptic number.

28371263 is a deficient number, since it is larger than the sum of its proper divisors (1).

28371263 is an equidigital number, since it uses as much as digits as its factorization.

28371263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 28371263 is about 5326.4681544153. The cubic root of 28371263 is about 304.9951195134.

The spelling of 28371263 in words is "twenty-eight million, three hundred seventy-one thousand, two hundred sixty-three".