1438277963 has 2 divisors, whose sum is σ = 1438277964. Its totient is φ = 1438277962.

The previous prime is 1438277917. The next prime is 1438277969. The reversal of 1438277963 is 3697728341.

It is a strong prime.

It is an emirp because it is prime and its reverse (3697728341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1438277963 - 2²² = 1434083659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1438277969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719138981 + 719138982.

It is an arithmetic number, because the mean of its divisors is an integer number (719138982).

Almost surely, 2^1438277963 is an apocalyptic number.

1438277963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438277963 is an equidigital number, since it uses as much as digits as its factorization.

1438277963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 1438277963 is about 37924.6353047725. The cubic root of 1438277963 is about 1128.7929165316.

The spelling of 1438277963 in words is "one billion, four hundred thirty-eight million, two hundred seventy-seven thousand, nine hundred sixty-three".