63351864 has 96 divisors (see below), whose sum is σ = 177952320. Its totient is φ = 20348928.

The previous prime is 63351853. The next prime is 63351887. The reversal of 63351864 is 46815336.

63351864 is a `hidden beast` number, since 633 + 5 + 18 + 6 + 4 = 666.

63351864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328152 + ... + 328344.

It is an arithmetic number, because the mean of its divisors is an integer number (1853670).

Almost surely, 2^63351864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63351864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88976160).

63351864 is an abundant number, since it is smaller than the sum of its proper divisors (114600456).

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

63351864 is a wasteful number, since it uses less digits than its factorization.

63351864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 342 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 63351864 is about 7959.3884187166. The cubic root of 63351864 is about 398.6451326845.

The spelling of 63351864 in words is "sixty-three million, three hundred fifty-one thousand, eight hundred sixty-four".