63323642 has 4 divisors (see below), whose sum is σ = 94985466. Its totient is φ = 31661820.

The previous prime is 63323641. The next prime is 63323647. The reversal of 63323642 is 24632336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 60855601 + 2468041 = 7801^2 + 1571^2 .

It is a super-2 number, since 2×63323642² = 8019767272288328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63323641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15830909 + ... + 15830912.

Almost surely, 2^63323642 is an apocalyptic number.

63323642 is a deficient number, since it is larger than the sum of its proper divisors (31661824).

63323642 is a wasteful number, since it uses less digits than its factorization.

63323642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31661823.

The product of its digits is 15552, while the sum is 29.

The square root of 63323642 is about 7957.6153463208. The cubic root of 63323642 is about 398.5859277231.

Adding to 63323642 its reverse (24632336), we get a palindrome (87955978).

The spelling of 63323642 in words is "sixty-three million, three hundred twenty-three thousand, six hundred forty-two".