28465663 has 2 divisors, whose sum is σ = 28465664. Its totient is φ = 28465662.

The previous prime is 28465639. The next prime is 28465673. The reversal of 28465663 is 36656482.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28465663 - 2⁵ = 28465631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28465673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14232831 + 14232832.

It is an arithmetic number, because the mean of its divisors is an integer number (14232832).

Almost surely, 2^28465663 is an apocalyptic number.

28465663 is a deficient number, since it is larger than the sum of its proper divisors (1).

28465663 is an equidigital number, since it uses as much as digits as its factorization.

28465663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 28465663 is about 5335.3222020793. The cubic root of 28465663 is about 305.3330161776. Note that the first 3 decimals are identical.

The spelling of 28465663 in words is "twenty-eight million, four hundred sixty-five thousand, six hundred sixty-three".