63467947 has 8 divisors (see below), whose sum is σ = 64415520. Its totient is φ = 62525760.

The previous prime is 63467941. The next prime is 63467983. The reversal of 63467947 is 74976436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63467947 - 2³ = 63467939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63467897 and 63467906.

It is not an unprimeable number, because it can be changed into a prime (63467941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26533 + ... + 28825.

It is an arithmetic number, because the mean of its divisors is an integer number (8051940).

Almost surely, 2^63467947 is an apocalyptic number.

63467947 is a deficient number, since it is larger than the sum of its proper divisors (947573).

63467947 is a wasteful number, since it uses less digits than its factorization.

63467947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its digits is 762048, while the sum is 46.

The square root of 63467947 is about 7966.6772873011. The cubic root of 63467947 is about 398.8884703657. Note that the first 3 decimals are identical.

The spelling of 63467947 in words is "sixty-three million, four hundred sixty-seven thousand, nine hundred forty-seven".