63784545 has 48 divisors (see below), whose sum is σ = 113533056. Its totient is φ = 30553600.

The previous prime is 63784541. The next prime is 63784549. The reversal of 63784545 is 54548736.

63784545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63784541) and next prime (63784549).

It is not a de Polignac number, because 63784545 - 2² = 63784541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63784497 and 63784506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63784541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204940 + ... + 205250.

It is an arithmetic number, because the mean of its divisors is an integer number (2365272).

Almost surely, 2^63784545 is an apocalyptic number.

It is an amenable number.

63784545 is a deficient number, since it is larger than the sum of its proper divisors (49748511).

63784545 is a wasteful number, since it uses less digits than its factorization.

63784545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 443 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 63784545 is about 7986.5227101662. The cubic root of 63784545 is about 399.5506307740.

The spelling of 63784545 in words is "sixty-three million, seven hundred eighty-four thousand, five hundred forty-five".