63171444 has 48 divisors (see below), whose sum is σ = 170215808. Its totient is φ = 17860608.

The previous prime is 63171421. The next prime is 63171457. The reversal of 63171444 is 44417136.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4272 + ... + 12024.

Almost surely, 2^63171444 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 63171444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85107904).

63171444 is an abundant number, since it is smaller than the sum of its proper divisors (107044364).

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

63171444 is a wasteful number, since it uses less digits than its factorization.

63171444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7864 (or 7862 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 63171444 is about 7948.0465524555. The cubic root of 63171444 is about 398.2663385673.

The spelling of 63171444 in words is "sixty-three million, one hundred seventy-one thousand, four hundred forty-four".