63520746 has 8 divisors (see below), whose sum is σ = 127041504. Its totient is φ = 21173580.

The previous prime is 63520711. The next prime is 63520747. The reversal of 63520746 is 64702536.

It is a sphenic number, since it is the product of 3 distinct primes.

63520746 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (63520747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5293390 + ... + 5293401.

It is an arithmetic number, because the mean of its divisors is an integer number (15880188).

Almost surely, 2^63520746 is an apocalyptic number.

63520746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

63520746 is a wasteful number, since it uses less digits than its factorization.

63520746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10586796.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 63520746 is about 7969.9903387645. The cubic root of 63520746 is about 398.9990515112. Note that the first 3 decimals are identical.

The spelling of 63520746 in words is "sixty-three million, five hundred twenty thousand, seven hundred forty-six".