63534389 has 8 divisors (see below), whose sum is σ = 69591960. Its totient is φ = 57734656.

The previous prime is 63534337. The next prime is 63534409. The reversal of 63534389 is 98343536.

It can be written as a sum of positive squares in 4 ways, for example, as 25502500 + 38031889 = 5050^2 + 6167^2 .

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 63534389 - 2¹² = 63530293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63534319) 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, 63944 + ... + 64929.

It is an arithmetic number, because the mean of its divisors is an integer number (8698995).

Almost surely, 2^63534389 is an apocalyptic number.

It is an amenable number.

63534389 is a deficient number, since it is larger than the sum of its proper divisors (6057571).

63534389 is a wasteful number, since it uses less digits than its factorization.

63534389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128919.

The product of its digits is 233280, while the sum is 41.

The square root of 63534389 is about 7970.8461909637. The cubic root of 63534389 is about 399.0276151681.

The spelling of 63534389 in words is "sixty-three million, five hundred thirty-four thousand, three hundred eighty-nine".