63727420 has 12 divisors (see below), whose sum is σ = 133827624. Its totient is φ = 25490960.

The previous prime is 63727403. The next prime is 63727421. The reversal of 63727420 is 2472736.

It is a happy number.

It is a super-2 number, since 2×63727420² = 8122368119712800, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63727421) 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, 1593166 + ... + 1593205.

It is an arithmetic number, because the mean of its divisors is an integer number (11152302).

Almost surely, 2^63727420 is an apocalyptic number.

It is an amenable number.

63727420 is an abundant number, since it is smaller than the sum of its proper divisors (70100204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63727420 is a wasteful number, since it uses less digits than its factorization.

63727420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186380 (or 3186378 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 63727420 is about 7982.9455716546. The cubic root of 63727420 is about 399.4313168819.

The spelling of 63727420 in words is "sixty-three million, seven hundred twenty-seven thousand, four hundred twenty".