63438329 has 2 divisors, whose sum is σ = 63438330. Its totient is φ = 63438328.

The previous prime is 63438317. The next prime is 63438337. The reversal of 63438329 is 92383436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63361600 + 76729 = 7960^2 + 277^2 .

It is a cyclic number.

It is not a de Polignac number, because 63438329 - 2²⁰ = 62389753 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 63438292 and 63438301.

It is not a weakly prime, because it can be changed into another prime (63438229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31719164 + 31719165.

It is an arithmetic number, because the mean of its divisors is an integer number (31719165).

Almost surely, 2^63438329 is an apocalyptic number.

It is an amenable number.

63438329 is a deficient number, since it is larger than the sum of its proper divisors (1).

63438329 is an equidigital number, since it uses as much as digits as its factorization.

63438329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 63438329 is about 7964.8182025706. The cubic root of 63438329 is about 398.8264121799.

The spelling of 63438329 in words is "sixty-three million, four hundred thirty-eight thousand, three hundred twenty-nine".