63721948 has 12 divisors (see below), whose sum is σ = 111682872. Its totient is φ = 31812560.

The previous prime is 63721927. The next prime is 63721949. The reversal of 63721948 is 84912736.

It is a self number, because there is not a number n which added to its sum of digits gives 63721948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63721949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9058 + ... + 14473.

It is an arithmetic number, because the mean of its divisors is an integer number (9306906).

Almost surely, 2^63721948 is an apocalyptic number.

It is an amenable number.

63721948 is a deficient number, since it is larger than the sum of its proper divisors (47960924).

63721948 is a wasteful number, since it uses less digits than its factorization.

63721948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24212 (or 24210 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 63721948 is about 7982.6028336627. The cubic root of 63721948 is about 399.4198840705.

The spelling of 63721948 in words is "sixty-three million, seven hundred twenty-one thousand, nine hundred forty-eight".