63715420 has 24 divisors (see below), whose sum is σ = 135185904. Its totient is φ = 25222656.

The previous prime is 63715411. The next prime is 63715423. The reversal of 63715420 is 2451736.

63715420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63715423) 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 7 ways as a sum of consecutive naturals, for example, 14482 + ... + 18361.

It is an arithmetic number, because the mean of its divisors is an integer number (5632746).

Almost surely, 2^63715420 is an apocalyptic number.

It is an amenable number.

63715420 is an abundant number, since it is smaller than the sum of its proper divisors (71470484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63715420 is a wasteful number, since it uses less digits than its factorization.

63715420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32949 (or 32947 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 63715420 is about 7982.1939340009. The cubic root of 63715420 is about 399.4062440708.

The spelling of 63715420 in words is "sixty-three million, seven hundred fifteen thousand, four hundred twenty".