28027453 has 2 divisors, whose sum is σ = 28027454. Its totient is φ = 28027452.

The previous prime is 28027411. The next prime is 28027457. The reversal of 28027453 is 35472082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18429849 + 9597604 = 4293^2 + 3098^2 .

It is a cyclic number.

It is not a de Polignac number, because 28027453 - 2⁹ = 28026941 is a prime.

It is equal to p_1743079 and since 28027453 and 1743079 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28027457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14013726 + 14013727.

It is an arithmetic number, because the mean of its divisors is an integer number (14013727).

Almost surely, 2^28027453 is an apocalyptic number.

It is an amenable number.

28027453 is a deficient number, since it is larger than the sum of its proper divisors (1).

28027453 is an equidigital number, since it uses as much as digits as its factorization.

28027453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 28027453 is about 5294.0960512631. The cubic root of 28027453 is about 303.7581070053.

The spelling of 28027453 in words is "twenty-eight million, twenty-seven thousand, four hundred fifty-three".