63853449 has 16 divisors (see below), whose sum is σ = 93251520. Its totient is φ = 38543360.

The previous prime is 63853421. The next prime is 63853463. The reversal of 63853449 is 94435836.

It is a cyclic number.

It is not a de Polignac number, because 63853449 - 2¹² = 63849353 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 63853449.

It is not an unprimeable number, because it can be changed into a prime (63853469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4717 + ... + 12245.

It is an arithmetic number, because the mean of its divisors is an integer number (5828220).

Almost surely, 2^63853449 is an apocalyptic number.

It is an amenable number.

63853449 is a deficient number, since it is larger than the sum of its proper divisors (29398071).

63853449 is a wasteful number, since it uses less digits than its factorization.

63853449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800.

The product of its digits is 311040, while the sum is 42.

The square root of 63853449 is about 7990.8353130320. The cubic root of 63853449 is about 399.6944520773.

The spelling of 63853449 in words is "sixty-three million, eight hundred fifty-three thousand, four hundred forty-nine".