78453383 has 2 divisors, whose sum is σ = 78453384. Its totient is φ = 78453382.

The previous prime is 78453341. The next prime is 78453433. The reversal of 78453383 is 38335487.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78453383 - 2⁸ = 78453127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78453383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78453883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39226691 + 39226692.

It is an arithmetic number, because the mean of its divisors is an integer number (39226692).

Almost surely, 2^78453383 is an apocalyptic number.

78453383 is a deficient number, since it is larger than the sum of its proper divisors (1).

78453383 is an equidigital number, since it uses as much as digits as its factorization.

78453383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 78453383 is about 8857.3914331478. The cubic root of 78453383 is about 428.0921115837.

The spelling of 78453383 in words is "seventy-eight million, four hundred fifty-three thousand, three hundred eighty-three".