63478267 has 4 divisors (see below), whose sum is σ = 63508536. Its totient is φ = 63448000.

The previous prime is 63478253. The next prime is 63478301. The reversal of 63478267 is 76287436.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63478267 - 2⁷ = 63478139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63478567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11734 + ... + 16267.

It is an arithmetic number, because the mean of its divisors is an integer number (15877134).

Almost surely, 2^63478267 is an apocalyptic number.

63478267 is a deficient number, since it is larger than the sum of its proper divisors (30269).

63478267 is a wasteful number, since it uses less digits than its factorization.

63478267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30268.

The product of its digits is 338688, while the sum is 43.

The square root of 63478267 is about 7967.3249588554. The cubic root of 63478267 is about 398.9100891833.

The spelling of 63478267 in words is "sixty-three million, four hundred seventy-eight thousand, two hundred sixty-seven".