63345813 has 8 divisors (see below), whose sum is σ = 86743968. Its totient is φ = 41089104.

The previous prime is 63345809. The next prime is 63345817. The reversal of 63345813 is 31854336.

63345813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63345809) and next prime (63345817).

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

It is not a de Polignac number, because 63345813 - 2² = 63345809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63345817) 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 7 ways as a sum of consecutive naturals, for example, 285231 + ... + 285452.

It is an arithmetic number, because the mean of its divisors is an integer number (10842996).

Almost surely, 2^63345813 is an apocalyptic number.

It is an amenable number.

63345813 is a deficient number, since it is larger than the sum of its proper divisors (23398155).

63345813 is a wasteful number, since it uses less digits than its factorization.

63345813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570723.

The product of its digits is 25920, while the sum is 33.

The square root of 63345813 is about 7959.0082924947. The cubic root of 63345813 is about 398.6324401955.

The spelling of 63345813 in words is "sixty-three million, three hundred forty-five thousand, eight hundred thirteen".