63317642 has 8 divisors (see below), whose sum is σ = 95048100. Its totient is φ = 31634944.

The previous prime is 63317641. The next prime is 63317659. The reversal of 63317642 is 24671336.

It can be written as a sum of positive squares in 2 ways, for example, as 60824401 + 2493241 = 7799^2 + 1579^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 63317599 and 63317608.

It is not an unprimeable number, because it can be changed into a prime (63317641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8417 + ... + 14052.

Almost surely, 2^63317642 is an apocalyptic number.

63317642 is a deficient number, since it is larger than the sum of its proper divisors (31730458).

63317642 is a wasteful number, since it uses less digits than its factorization.

63317642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23880.

The product of its digits is 18144, while the sum is 32.

The square root of 63317642 is about 7957.2383400273. The cubic root of 63317642 is about 398.5733384751.

Adding to 63317642 its reverse (24671336), we get a palindrome (87988978).

The spelling of 63317642 in words is "sixty-three million, three hundred seventeen thousand, six hundred forty-two".