63432385 has 4 divisors (see below), whose sum is σ = 76118868. Its totient is φ = 50745904.

The previous prime is 63432373. The next prime is 63432403. The reversal of 63432385 is 58323436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12794929 + 50637456 = 3577^2 + 7116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63432385 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 63432385.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6343234 + ... + 6343243.

It is an arithmetic number, because the mean of its divisors is an integer number (19029717).

Almost surely, 2^63432385 is an apocalyptic number.

It is an amenable number.

63432385 is a deficient number, since it is larger than the sum of its proper divisors (12686483).

63432385 is a wasteful number, since it uses less digits than its factorization.

63432385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12686482.

The product of its digits is 51840, while the sum is 34.

The square root of 63432385 is about 7964.4450528584. The cubic root of 63432385 is about 398.8139554718.

The spelling of 63432385 in words is "sixty-three million, four hundred thirty-two thousand, three hundred eighty-five".