63924842 has 4 divisors (see below), whose sum is σ = 95887266. Its totient is φ = 31962420.

The previous prime is 63924829. The next prime is 63924869. The reversal of 63924842 is 24842936.

It is a happy number.

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., 58537801 + 5387041 = 7651^2 + 2321^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63924796 and 63924805.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15981209 + ... + 15981212.

Almost surely, 2^63924842 is an apocalyptic number.

63924842 is a deficient number, since it is larger than the sum of its proper divisors (31962424).

63924842 is a wasteful number, since it uses less digits than its factorization.

63924842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31962423.

The product of its digits is 82944, while the sum is 38.

The square root of 63924842 is about 7995.3012451064. The cubic root of 63924842 is about 399.8433595007.

The spelling of 63924842 in words is "sixty-three million, nine hundred twenty-four thousand, eight hundred forty-two".