63494172 has 48 divisors (see below), whose sum is σ = 188133120. Its totient is φ = 18140976.

The previous prime is 63494161. The next prime is 63494203. The reversal of 63494172 is 27149436.

63494172 is a `hidden beast` number, since 634 + 9 + 4 + 17 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 41238 + ... + 42749.

It is an arithmetic number, because the mean of its divisors is an integer number (3919440).

Almost surely, 2^63494172 is an apocalyptic number.

It is an amenable number.

63494172 is an abundant number, since it is smaller than the sum of its proper divisors (124638948).

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

63494172 is a wasteful number, since it uses less digits than its factorization.

63494172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84007 (or 83999 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 63494172 is about 7968.3230356205. The cubic root of 63494172 is about 398.9434031318.

The spelling of 63494172 in words is "sixty-three million, four hundred ninety-four thousand, one hundred seventy-two".