63859138 has 8 divisors (see below), whose sum is σ = 109472832. Its totient is φ = 27368196.

The previous prime is 63859129. The next prime is 63859139. The reversal of 63859138 is 83195836.

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

It is a super-2 number, since 2×63859138² = 8155979012206088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63859094 and 63859103.

It is not an unprimeable number, because it can be changed into a prime (63859139) 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, 2280670 + ... + 2280697.

It is an arithmetic number, because the mean of its divisors is an integer number (13684104).

Almost surely, 2^63859138 is an apocalyptic number.

63859138 is a deficient number, since it is larger than the sum of its proper divisors (45613694).

63859138 is a wasteful number, since it uses less digits than its factorization.

63859138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561376.

The product of its digits is 155520, while the sum is 43.

The square root of 63859138 is about 7991.1912753982. The cubic root of 63859138 is about 399.7063219358.

The spelling of 63859138 in words is "sixty-three million, eight hundred fifty-nine thousand, one hundred thirty-eight".