63693924 has 72 divisors (see below), whose sum is σ = 174283200. Its totient is φ = 18051264.

The previous prime is 63693913. The next prime is 63693941. The reversal of 63693924 is 42939636.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87249 + ... + 87975.

It is an arithmetic number, because the mean of its divisors is an integer number (2420600).

Almost surely, 2^63693924 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 63693924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87141600).

63693924 is an abundant number, since it is smaller than the sum of its proper divisors (110589276).

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

63693924 is a wasteful number, since it uses less digits than its factorization.

63693924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 888 counting only the distinct ones).

The product of its digits is 209952, while the sum is 42.

The square root of 63693924 is about 7980.8473234363. The cubic root of 63693924 is about 399.3613224368.

The spelling of 63693924 in words is "sixty-three million, six hundred ninety-three thousand, nine hundred twenty-four".