63499172 has 24 divisors (see below), whose sum is σ = 121474080. Its totient is φ = 28804160.

The previous prime is 63499171. The next prime is 63499187. The reversal of 63499172 is 27199436.

It is not an unprimeable number, because it can be changed into a prime (63499171) 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, 25979 + ... + 28317.

It is an arithmetic number, because the mean of its divisors is an integer number (5061420).

Almost surely, 2^63499172 is an apocalyptic number.

It is an amenable number.

63499172 is a deficient number, since it is larger than the sum of its proper divisors (57974908).

63499172 is a wasteful number, since it uses less digits than its factorization.

63499172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971 (or 2969 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The square root of 63499172 is about 7968.6367717446. The cubic root of 63499172 is about 398.9538747735.

The spelling of 63499172 in words is "sixty-three million, four hundred ninety-nine thousand, one hundred seventy-two".