28770383 has 2 divisors, whose sum is σ = 28770384. Its totient is φ = 28770382.

The previous prime is 28770377. The next prime is 28770421. The reversal of 28770383 is 38307782.

It is an a-pointer prime, because the next prime (28770421) can be obtained adding 28770383 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28770383 - 2¹⁰ = 28769359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28770323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14385191 + 14385192.

It is an arithmetic number, because the mean of its divisors is an integer number (14385192).

Almost surely, 2^28770383 is an apocalyptic number.

28770383 is a deficient number, since it is larger than the sum of its proper divisors (1).

28770383 is an equidigital number, since it uses as much as digits as its factorization.

28770383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 28770383 is about 5363.8030351608. The cubic root of 28770383 is about 306.4186638334.

The spelling of 28770383 in words is "twenty-eight million, seven hundred seventy thousand, three hundred eighty-three".