63870912 has 252 divisors, whose sum is σ = 222845376. Its totient is φ = 17418240.

The previous prime is 63870901. The next prime is 63870923. The reversal of 63870912 is 21907836.

63870912 is a `hidden beast` number, since 638 + 7 + 0 + 9 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (63870901) and next prime (63870923).

It is a tau number, because it is divible by the number of its divisors (252).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 874908 + ... + 874980.

Almost surely, 2^63870912 is an apocalyptic number.

63870912 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63870912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111422688).

63870912 is an abundant number, since it is smaller than the sum of its proper divisors (158974464).

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

63870912 is a wasteful number, since it uses less digits than its factorization.

63870912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 63870912 is about 7991.9279276030. The cubic root of 63870912 is about 399.7308856509.

The spelling of 63870912 in words is "sixty-three million, eight hundred seventy thousand, nine hundred twelve".