63689023 has 8 divisors (see below), whose sum is σ = 64713600. Its totient is φ = 62671488.

The previous prime is 63689009. The next prime is 63689029. The reversal of 63689023 is 32098636.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63689023 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 (63689029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18243 + ... + 21451.

It is an arithmetic number, because the mean of its divisors is an integer number (8089200).

Almost surely, 2^63689023 is an apocalyptic number.

63689023 is a deficient number, since it is larger than the sum of its proper divisors (1024577).

63689023 is a wasteful number, since it uses less digits than its factorization.

63689023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 63689023 is about 7980.5402699316. The cubic root of 63689023 is about 399.3510790734.

The spelling of 63689023 in words is "sixty-three million, six hundred eighty-nine thousand, twenty-three".