1389227963 has 2 divisors, whose sum is σ = 1389227964. Its totient is φ = 1389227962.

The previous prime is 1389227953. The next prime is 1389228007. The reversal of 1389227963 is 3697229831.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1389227963 - 2¹⁶ = 1389162427 is a prime.

It is a super-2 number, since 2×1389227963² = 3859908666362258738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1389227933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694613981 + 694613982.

It is an arithmetic number, because the mean of its divisors is an integer number (694613982).

Almost surely, 2^1389227963 is an apocalyptic number.

1389227963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389227963 is an equidigital number, since it uses as much as digits as its factorization.

1389227963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 1389227963 is about 37272.3485039513. The cubic root of 1389227963 is about 1115.8123710356.

The spelling of 1389227963 in words is "one billion, three hundred eighty-nine million, two hundred twenty-seven thousand, nine hundred sixty-three".