28061023 has 2 divisors, whose sum is σ = 28061024. Its totient is φ = 28061022.

The previous prime is 28061017. The next prime is 28061039. The reversal of 28061023 is 32016082.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28061023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28060985 and 28061003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28061053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030511 + 14030512.

It is an arithmetic number, because the mean of its divisors is an integer number (14030512).

Almost surely, 2^28061023 is an apocalyptic number.

28061023 is a deficient number, since it is larger than the sum of its proper divisors (1).

28061023 is an equidigital number, since it uses as much as digits as its factorization.

28061023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28061023 is about 5297.2656153906. The cubic root of 28061023 is about 303.8793344691.

The spelling of 28061023 in words is "twenty-eight million, sixty-one thousand, twenty-three".