78008383 has 2 divisors, whose sum is σ = 78008384. Its totient is φ = 78008382.

The previous prime is 78008351. The next prime is 78008401. The reversal of 78008383 is 38380087.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78008383 - 2⁵ = 78008351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78008303) 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, 39004191 + 39004192.

It is an arithmetic number, because the mean of its divisors is an integer number (39004192).

Almost surely, 2^78008383 is an apocalyptic number.

78008383 is a deficient number, since it is larger than the sum of its proper divisors (1).

78008383 is an equidigital number, since it uses as much as digits as its factorization.

78008383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 78008383 is about 8832.2354474957. The cubic root of 78008383 is about 427.2811743299.

The spelling of 78008383 in words is "seventy-eight million, eight thousand, three hundred eighty-three".