63446172 has 12 divisors (see below), whose sum is σ = 148041096. Its totient is φ = 21148720.

The previous prime is 63446143. The next prime is 63446179. The reversal of 63446172 is 27164436.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63446179) 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, 2643579 + ... + 2643602.

It is an arithmetic number, because the mean of its divisors is an integer number (12336758).

Almost surely, 2^63446172 is an apocalyptic number.

It is an amenable number.

63446172 is an abundant number, since it is smaller than the sum of its proper divisors (84594924).

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

63446172 is a wasteful number, since it uses less digits than its factorization.

63446172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287188 (or 5287186 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 63446172 is about 7965.3105400857. The cubic root of 63446172 is about 398.8428473892.

The spelling of 63446172 in words is "sixty-three million, four hundred forty-six thousand, one hundred seventy-two".