5781319 has 2 divisors, whose sum is σ = 5781320. Its totient is φ = 5781318.

The previous prime is 5781313. The next prime is 5781323. The reversal of 5781319 is 9131875.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5781319 - 2³ = 5781311 is a prime.

It is a super-2 number, since 2×5781319² = 66847298759522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5781311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2890659 + 2890660.

It is an arithmetic number, because the mean of its divisors is an integer number (2890660).

Almost surely, 2^5781319 is an apocalyptic number.

5781319 is a deficient number, since it is larger than the sum of its proper divisors (1).

5781319 is an equidigital number, since it uses as much as digits as its factorization.

5781319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 34.

The square root of 5781319 is about 2404.4373562229. The cubic root of 5781319 is about 179.4770728237.

The spelling of 5781319 in words is "five million, seven hundred eighty-one thousand, three hundred nineteen".