78590383 has 2 divisors, whose sum is σ = 78590384. Its totient is φ = 78590382.

The previous prime is 78590357. The next prime is 78590401. The reversal of 78590383 is 38309587.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (38309587) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78590383 - 2²¹ = 76493231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78590353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39295191 + 39295192.

It is an arithmetic number, because the mean of its divisors is an integer number (39295192).

Almost surely, 2^78590383 is an apocalyptic number.

78590383 is a deficient number, since it is larger than the sum of its proper divisors (1).

78590383 is an equidigital number, since it uses as much as digits as its factorization.

78590383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 78590383 is about 8865.1217137725. The cubic root of 78590383 is about 428.3411533779.

The spelling of 78590383 in words is "seventy-eight million, five hundred ninety thousand, three hundred eighty-three".