63648937 has 8 divisors (see below), whose sum is σ = 69499872. Its totient is φ = 57808800.

The previous prime is 63648931. The next prime is 63648941. The reversal of 63648937 is 73984636.

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

It is a cyclic number.

It is not a de Polignac number, because 63648937 - 2¹¹ = 63646889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63648931) 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, 14338 + ... + 18244.

It is an arithmetic number, because the mean of its divisors is an integer number (8687484).

Almost surely, 2^63648937 is an apocalyptic number.

It is an amenable number.

63648937 is a deficient number, since it is larger than the sum of its proper divisors (5850935).

63648937 is a wasteful number, since it uses less digits than its factorization.

63648937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399.

The product of its digits is 653184, while the sum is 46.

The square root of 63648937 is about 7978.0283905236. The cubic root of 63648937 is about 399.2672773634.

The spelling of 63648937 in words is "sixty-three million, six hundred forty-eight thousand, nine hundred thirty-seven".