63311712 has 24 divisors (see below), whose sum is σ = 166193496. Its totient is φ = 21103872.

The previous prime is 63311711. The next prime is 63311719. The reversal of 63311712 is 21711336.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63311711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329653 + ... + 329844.

It is an arithmetic number, because the mean of its divisors is an integer number (6924729).

Almost surely, 2^63311712 is an apocalyptic number.

It is an amenable number.

63311712 is an abundant number, since it is smaller than the sum of its proper divisors (102881784).

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

63311712 is a wasteful number, since it uses less digits than its factorization.

63311712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659510 (or 659502 counting only the distinct ones).

The product of its digits is 756, while the sum is 24.

The square root of 63311712 is about 7956.8657145889. The cubic root of 63311712 is about 398.5608953202.

The spelling of 63311712 in words is "sixty-three million, three hundred eleven thousand, seven hundred twelve".