63872226 has 80 divisors (see below), whose sum is σ = 158593248. Its totient is φ = 19051200.

The previous prime is 63872209. The next prime is 63872227. The reversal of 63872226 is 62227836.

It is a super-2 number, since 2×63872226² = 8159322508390152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63872227) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 129841 + ... + 130331.

Almost surely, 2^63872226 is an apocalyptic number.

63872226 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 63872226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79296624).

63872226 is an abundant number, since it is smaller than the sum of its proper divisors (94721022).

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

63872226 is a wasteful number, since it uses less digits than its factorization.

63872226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 580 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 63872226 is about 7992.0101351287. The cubic root of 63872226 is about 399.7336268194.

The spelling of 63872226 in words is "sixty-three million, eight hundred seventy-two thousand, two hundred twenty-six".