63528909 has 8 divisors (see below), whose sum is σ = 85085952. Its totient is φ = 42162240.

The previous prime is 63528863. The next prime is 63528911. The reversal of 63528909 is 90982536.

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

It is not a de Polignac number, because 63528909 - 2⁸ = 63528653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63528919) 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, 46812 + ... + 48149.

It is an arithmetic number, because the mean of its divisors is an integer number (10635744).

Almost surely, 2^63528909 is an apocalyptic number.

It is an amenable number.

63528909 is a deficient number, since it is larger than the sum of its proper divisors (21557043).

63528909 is a wasteful number, since it uses less digits than its factorization.

63528909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95187.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 63528909 is about 7970.5024308383. The cubic root of 63528909 is about 399.0161424616.

The spelling of 63528909 in words is "sixty-three million, five hundred twenty-eight thousand, nine hundred nine".