63465643 has 4 divisors (see below), whose sum is σ = 66805960. Its totient is φ = 60125328.

The previous prime is 63465637. The next prime is 63465667. The reversal of 63465643 is 34656436.

63465643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63465643 - 2¹³ = 63457451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63465443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670130 + ... + 1670167.

It is an arithmetic number, because the mean of its divisors is an integer number (16701490).

Almost surely, 2^63465643 is an apocalyptic number.

63465643 is a deficient number, since it is larger than the sum of its proper divisors (3340317).

63465643 is a wasteful number, since it uses less digits than its factorization.

63465643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340316.

The product of its digits is 155520, while the sum is 37.

The square root of 63465643 is about 7966.5326836711. The cubic root of 63465643 is about 398.8836435190.

The spelling of 63465643 in words is "sixty-three million, four hundred sixty-five thousand, six hundred forty-three".