28071383 has 2 divisors, whose sum is σ = 28071384. Its totient is φ = 28071382.

The previous prime is 28071367. The next prime is 28071409. The reversal of 28071383 is 38317082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28071383 - 2⁴ = 28071367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28071083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14035691 + 14035692.

It is an arithmetic number, because the mean of its divisors is an integer number (14035692).

Almost surely, 2^28071383 is an apocalyptic number.

28071383 is a deficient number, since it is larger than the sum of its proper divisors (1).

28071383 is an equidigital number, since it uses as much as digits as its factorization.

28071383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 28071383 is about 5298.2433881429. The cubic root of 28071383 is about 303.9167268164.

The spelling of 28071383 in words is "twenty-eight million, seventy-one thousand, three hundred eighty-three".