28111463 has 2 divisors, whose sum is σ = 28111464. Its totient is φ = 28111462.

The previous prime is 28111459. The next prime is 28111487. The reversal of 28111463 is 36411182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28111463 - 2² = 28111459 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28111403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14055731 + 14055732.

It is an arithmetic number, because the mean of its divisors is an integer number (14055732).

Almost surely, 2^28111463 is an apocalyptic number.

28111463 is a deficient number, since it is larger than the sum of its proper divisors (1).

28111463 is an equidigital number, since it uses as much as digits as its factorization.

28111463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 28111463 is about 5302.0244246891. The cubic root of 28111463 is about 304.0613009747.

The spelling of 28111463 in words is "twenty-eight million, one hundred eleven thousand, four hundred sixty-three".