63434521 has 8 divisors (see below), whose sum is σ = 66978080. Its totient is φ = 59911488.

The previous prime is 63434479. The next prime is 63434533. The reversal of 63434521 is 12543436.

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 63434521 - 2²¹ = 61337369 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63434521.

It is not an unprimeable number, because it can be changed into a prime (63434321) 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, 1450 + ... + 11356.

It is an arithmetic number, because the mean of its divisors is an integer number (8372260).

Almost surely, 2^63434521 is an apocalyptic number.

It is an amenable number.

63434521 is a deficient number, since it is larger than the sum of its proper divisors (3543559).

63434521 is a wasteful number, since it uses less digits than its factorization.

63434521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10263.

The product of its digits is 8640, while the sum is 28.

The square root of 63434521 is about 7964.5791477014. The cubic root of 63434521 is about 398.8184319289.

Adding to 63434521 its reverse (12543436), we get a palindrome (75977957).

The spelling of 63434521 in words is "sixty-three million, four hundred thirty-four thousand, five hundred twenty-one".