28036423 has 2 divisors, whose sum is σ = 28036424. Its totient is φ = 28036422.

The previous prime is 28036403. The next prime is 28036427. The reversal of 28036423 is 32463082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28036423 - 2⁵ = 28036391 is a prime.

It is a super-3 number, since 3×28036423³ (a number of 23 digits) contains 333 as substring.

It is equal to p_1743616 and since 28036423 and 1743616 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 28036391 and 28036400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28036427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14018211 + 14018212.

It is an arithmetic number, because the mean of its divisors is an integer number (14018212).

Almost surely, 2^28036423 is an apocalyptic number.

28036423 is a deficient number, since it is larger than the sum of its proper divisors (1).

28036423 is an equidigital number, since it uses as much as digits as its factorization.

28036423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 28036423 is about 5294.9431536136. The cubic root of 28036423 is about 303.7905088031.

The spelling of 28036423 in words is "twenty-eight million, thirty-six thousand, four hundred twenty-three".