63812838 has 8 divisors (see below), whose sum is σ = 127625688. Its totient is φ = 21270944.

The previous prime is 63812797. The next prime is 63812857. The reversal of 63812838 is 83821836.

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

63812838 is an admirable number.

It is a super-2 number, since 2×63812838² = 8144156587228488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63812796 and 63812805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5317731 + ... + 5317742.

It is an arithmetic number, because the mean of its divisors is an integer number (15953211).

Almost surely, 2^63812838 is an apocalyptic number.

63812838 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.

63812838 is a wasteful number, since it uses less digits than its factorization.

63812838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10635478.

The product of its digits is 55296, while the sum is 39.

The square root of 63812838 is about 7988.2938103202. The cubic root of 63812838 is about 399.6096984523.

The spelling of 63812838 in words is "sixty-three million, eight hundred twelve thousand, eight hundred thirty-eight".