1384319869 has 2 divisors, whose sum is σ = 1384319870. Its totient is φ = 1384319868.

The previous prime is 1384319851. The next prime is 1384319921. The reversal of 1384319869 is 9689134831.

It is a happy number.

It is an a-pointer prime, because the next prime (1384319921) can be obtained adding 1384319869 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 829152025 + 555167844 = 28795^2 + 23562^2 .

It is a cyclic number.

It is not a de Polignac number, because 1384319869 - 2²¹ = 1382222717 is a prime.

It is a super-2 number, since 2×1384319869² = 3832682999416354322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384319569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692159934 + 692159935.

It is an arithmetic number, because the mean of its divisors is an integer number (692159935).

Almost surely, 2^1384319869 is an apocalyptic number.

It is an amenable number.

1384319869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384319869 is an equidigital number, since it uses as much as digits as its factorization.

1384319869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 52.

The square root of 1384319869 is about 37206.4492930997. The cubic root of 1384319869 is about 1114.4967784235.

The spelling of 1384319869 in words is "one billion, three hundred eighty-four million, three hundred nineteen thousand, eight hundred sixty-nine".