438655463 has 2 divisors, whose sum is σ = 438655464. Its totient is φ = 438655462.

The previous prime is 438655447. The next prime is 438655523. The reversal of 438655463 is 364556834.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438655463 - 2⁴ = 438655447 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438655663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219327731 + 219327732.

It is an arithmetic number, because the mean of its divisors is an integer number (219327732).

Almost surely, 2^438655463 is an apocalyptic number.

438655463 is a deficient number, since it is larger than the sum of its proper divisors (1).

438655463 is an equidigital number, since it uses as much as digits as its factorization.

438655463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 44.

The square root of 438655463 is about 20944.1032990195. The cubic root of 438655463 is about 759.8149728477.

The spelling of 438655463 in words is "four hundred thirty-eight million, six hundred fifty-five thousand, four hundred sixty-three".