63648741 has 8 divisors (see below), whose sum is σ = 91393120. Its totient is φ = 39168432.

The previous prime is 63648737. The next prime is 63648743. The reversal of 63648741 is 14784636.

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

It is not a de Polignac number, because 63648741 - 2² = 63648737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1632019 = 63648741 / (6 + 3 + 6 + 4 + 8 + 7 + 4 + 1).

It is a self number, because there is not a number n which added to its sum of digits gives 63648741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63648743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815971 + ... + 816048.

It is an arithmetic number, because the mean of its divisors is an integer number (11424140).

Almost surely, 2^63648741 is an apocalyptic number.

It is an amenable number.

63648741 is a deficient number, since it is larger than the sum of its proper divisors (27744379).

63648741 is a wasteful number, since it uses less digits than its factorization.

63648741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632035.

The product of its digits is 96768, while the sum is 39.

The square root of 63648741 is about 7978.0161067774. The cubic root of 63648741 is about 399.2668675295.

The spelling of 63648741 in words is "sixty-three million, six hundred forty-eight thousand, seven hundred forty-one".