1389319 has 2 divisors, whose sum is σ = 1389320. Its totient is φ = 1389318.

The previous prime is 1389301. The next prime is 1389329. The reversal of 1389319 is 9139831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1389319 - 2⁷ = 1389191 is a prime.

It is a super-2 number, since 2×1389319² = 3860414567522, which contains 22 as substring.

1389319 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694659 + 694660.

It is an arithmetic number, because the mean of its divisors is an integer number (694660).

2^1389319 is an apocalyptic number.

1389319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389319 is an equidigital number, since it uses as much as digits as its factorization.

1389319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 34.

The square root of 1389319 is about 1178.6937685421. The cubic root of 1389319 is about 111.5836743803.

The spelling of 1389319 in words is "one million, three hundred eighty-nine thousand, three hundred nineteen".