63478567 has 2 divisors, whose sum is σ = 63478568. Its totient is φ = 63478566.

The previous prime is 63478553. The next prime is 63478579. The reversal of 63478567 is 76587436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63478567 - 2²³ = 55089959 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63478967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31739283 + 31739284.

It is an arithmetic number, because the mean of its divisors is an integer number (31739284).

Almost surely, 2^63478567 is an apocalyptic number.

63478567 is a deficient number, since it is larger than the sum of its proper divisors (1).

63478567 is an equidigital number, since it uses as much as digits as its factorization.

63478567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 63478567 is about 7967.3437857293. The cubic root of 63478567 is about 398.9107176023.

The spelling of 63478567 in words is "sixty-three million, four hundred seventy-eight thousand, five hundred sixty-seven".