28945463 has 2 divisors, whose sum is σ = 28945464. Its totient is φ = 28945462.

The previous prime is 28945457. The next prime is 28945487. The reversal of 28945463 is 36454982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28945463 - 2⁴ = 28945447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28945463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28945403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14472731 + 14472732.

It is an arithmetic number, because the mean of its divisors is an integer number (14472732).

Almost surely, 2^28945463 is an apocalyptic number.

28945463 is a deficient number, since it is larger than the sum of its proper divisors (1).

28945463 is an equidigital number, since it uses as much as digits as its factorization.

28945463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The square root of 28945463 is about 5380.0987909145. The cubic root of 28945463 is about 307.0389698256.

The spelling of 28945463 in words is "twenty-eight million, nine hundred forty-five thousand, four hundred sixty-three".