5778391 has 2 divisors, whose sum is σ = 5778392. Its totient is φ = 5778390.

The previous prime is 5778371. The next prime is 5778407. The reversal of 5778391 is 1938775.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5778391 - 2⁷ = 5778263 is a prime.

5778391 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5778301) 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, 2889195 + 2889196.

It is an arithmetic number, because the mean of its divisors is an integer number (2889196).

Almost surely, 2^5778391 is an apocalyptic number.

5778391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5778391 is an equidigital number, since it uses as much as digits as its factorization.

5778391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The square root of 5778391 is about 2403.8284048576. The cubic root of 5778391 is about 179.4467684583.

The spelling of 5778391 in words is "five million, seven hundred seventy-eight thousand, three hundred ninety-one".