63982420 has 12 divisors (see below), whose sum is σ = 134363124. Its totient is φ = 25592960.

The previous prime is 63982403. The next prime is 63982421. The reversal of 63982420 is 2428936.

It can be written as a sum of positive squares in 2 ways, for example, as 7160976 + 56821444 = 2676^2 + 7538^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63982421) 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, 1599541 + ... + 1599580.

It is an arithmetic number, because the mean of its divisors is an integer number (11196927).

Almost surely, 2^63982420 is an apocalyptic number.

It is an amenable number.

63982420 is an abundant number, since it is smaller than the sum of its proper divisors (70380704).

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

63982420 is a wasteful number, since it uses less digits than its factorization.

63982420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199130 (or 3199128 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 63982420 is about 7998.9011745364. The cubic root of 63982420 is about 399.9633716460.

The spelling of 63982420 in words is "sixty-three million, nine hundred eighty-two thousand, four hundred twenty".