63465447 has 4 divisors (see below), whose sum is σ = 84620600. Its totient is φ = 42310296.

The previous prime is 63465443. The next prime is 63465449. The reversal of 63465447 is 74456436.

It is a happy number.

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

It is not a de Polignac number, because 63465447 - 2² = 63465443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63465443) 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, 10577572 + ... + 10577577.

It is an arithmetic number, because the mean of its divisors is an integer number (21155150).

Almost surely, 2^63465447 is an apocalyptic number.

63465447 is a deficient number, since it is larger than the sum of its proper divisors (21155153).

63465447 is a wasteful number, since it uses less digits than its factorization.

63465447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21155152.

The product of its digits is 241920, while the sum is 39.

The square root of 63465447 is about 7966.5203821995. The cubic root of 63465447 is about 398.8832328964.

The spelling of 63465447 in words is "sixty-three million, four hundred sixty-five thousand, four hundred forty-seven".