63457172 has 6 divisors (see below), whose sum is σ = 111050058. Its totient is φ = 31728584.

The previous prime is 63457171. The next prime is 63457187. The reversal of 63457172 is 27175436.

It can be written as a sum of positive squares in only one way, i.e., 63457156 + 16 = 7966^2 + 4^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63457171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7932143 + ... + 7932150.

It is an arithmetic number, because the mean of its divisors is an integer number (18508343).

Almost surely, 2^63457172 is an apocalyptic number.

It is an amenable number.

63457172 is a deficient number, since it is larger than the sum of its proper divisors (47592886).

63457172 is a wasteful number, since it uses less digits than its factorization.

63457172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15864297 (or 15864295 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 63457172 is about 7966.0010042681. The cubic root of 63457172 is about 398.8658958919.

The spelling of 63457172 in words is "sixty-three million, four hundred fifty-seven thousand, one hundred seventy-two".