63920171 has 8 divisors (see below), whose sum is σ = 75408384. Its totient is φ = 53021160.

The previous prime is 63920167. The next prime is 63920179. The reversal of 63920171 is 17102936.

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

It is not a de Polignac number, because 63920171 - 2² = 63920167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63920179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147065 + ... + 147498.

It is an arithmetic number, because the mean of its divisors is an integer number (9426048).

Almost surely, 2^63920171 is an apocalyptic number.

63920171 is a deficient number, since it is larger than the sum of its proper divisors (11488213).

63920171 is a wasteful number, since it uses less digits than its factorization.

63920171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294601.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 63920171 is about 7995.0091307015. The cubic root of 63920171 is about 399.8336203875.

The spelling of 63920171 in words is "sixty-three million, nine hundred twenty thousand, one hundred seventy-one".