63921741 has 8 divisors (see below), whose sum is σ = 91785120. Its totient is φ = 39336432.

The previous prime is 63921731. The next prime is 63921769. The reversal of 63921741 is 14712936.

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

It is not a de Polignac number, because 63921741 - 2⁶ = 63921677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63921731) 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 in 7 ways as a sum of consecutive naturals, for example, 819471 + ... + 819548.

It is an arithmetic number, because the mean of its divisors is an integer number (11473140).

Almost surely, 2^63921741 is an apocalyptic number.

It is an amenable number.

63921741 is a deficient number, since it is larger than the sum of its proper divisors (27863379).

63921741 is a wasteful number, since it uses less digits than its factorization.

63921741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639035.

The product of its digits is 9072, while the sum is 33.

The square root of 63921741 is about 7995.1073163529. The cubic root of 63921741 is about 399.8368939167.

The spelling of 63921741 in words is "sixty-three million, nine hundred twenty-one thousand, seven hundred forty-one".