63648334 has 4 divisors (see below), whose sum is σ = 95472504. Its totient is φ = 31824166.

The previous prime is 63648331. The next prime is 63648353. The reversal of 63648334 is 43384636.

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

It is a super-2 number, since 2×63648334² = 8102220841951112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63648293 and 63648302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63648331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15912082 + ... + 15912085.

It is an arithmetic number, because the mean of its divisors is an integer number (23868126).

Almost surely, 2^63648334 is an apocalyptic number.

63648334 is a deficient number, since it is larger than the sum of its proper divisors (31824170).

63648334 is a wasteful number, since it uses less digits than its factorization.

63648334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31824169.

The product of its digits is 124416, while the sum is 37.

The square root of 63648334 is about 7977.9905991421. The cubic root of 63648334 is about 399.2660164943.

The spelling of 63648334 in words is "sixty-three million, six hundred forty-eight thousand, three hundred thirty-four".