63980424 has 48 divisors (see below), whose sum is σ = 175085820. Its totient is φ = 21104640.

The previous prime is 63980419. The next prime is 63980447. The reversal of 63980424 is 42408936.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63202500 + 777924 = 7950^2 + 882^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2404 + ... + 11564.

Almost surely, 2^63980424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63980424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87542910).

63980424 is an abundant number, since it is smaller than the sum of its proper divisors (111105396).

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

63980424 is a wasteful number, since it uses less digits than its factorization.

63980424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9270 (or 9263 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 63980424 is about 7998.7764064262. The cubic root of 63980424 is about 399.9592125078.

The spelling of 63980424 in words is "sixty-three million, nine hundred eighty thousand, four hundred twenty-four".