63485645 has 4 divisors (see below), whose sum is σ = 76182780. Its totient is φ = 50788512.

The previous prime is 63485629. The next prime is 63485651. The reversal of 63485645 is 54658436.

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 17422276 + 46063369 = 4174^2 + 6787^2 .

It is a cyclic number.

It is not a de Polignac number, because 63485645 - 2⁴ = 63485629 is a prime.

It is a super-3 number, since 3×63485645³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

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, 6348560 + ... + 6348569.

It is an arithmetic number, because the mean of its divisors is an integer number (19045695).

Almost surely, 2^63485645 is an apocalyptic number.

It is an amenable number.

63485645 is a deficient number, since it is larger than the sum of its proper divisors (12697135).

63485645 is a wasteful number, since it uses less digits than its factorization.

63485645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12697134.

The product of its digits is 345600, while the sum is 41.

The square root of 63485645 is about 7967.7879615361. The cubic root of 63485645 is about 398.9255435257.

The spelling of 63485645 in words is "sixty-three million, four hundred eighty-five thousand, six hundred forty-five".