1383620839 has 2 divisors, whose sum is σ = 1383620840. Its totient is φ = 1383620838.

The previous prime is 1383620813. The next prime is 1383620879. The reversal of 1383620839 is 9380263831.

It is a weak prime.

It is an emirp because it is prime and its reverse (9380263831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1383620839 - 2¹¹ = 1383618791 is a prime.

It is a super-2 number, since 2×1383620839² = 3828813252230127842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1383620795 and 1383620804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1383620879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691810419 + 691810420.

It is an arithmetic number, because the mean of its divisors is an integer number (691810420).

Almost surely, 2^1383620839 is an apocalyptic number.

1383620839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383620839 is an equidigital number, since it uses as much as digits as its factorization.

1383620839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 1383620839 is about 37197.0541709959. The cubic root of 1383620839 is about 1114.3091537108.

The spelling of 1383620839 in words is "one billion, three hundred eighty-three million, six hundred twenty thousand, eight hundred thirty-nine".