63291880 has 16 divisors (see below), whose sum is σ = 142406820. Its totient is φ = 25316736.

The previous prime is 63291871. The next prime is 63291889. The reversal of 63291880 is 8819236.

63291880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63291871) and next prime (63291889).

It can be written as a sum of positive squares in 2 ways, for example, as 58890276 + 4401604 = 7674^2 + 2098^2 .

It is not an unprimeable number, because it can be changed into a prime (63291889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791109 + ... + 791188.

Almost surely, 2^63291880 is an apocalyptic number.

It is an amenable number.

63291880 is an abundant number, since it is smaller than the sum of its proper divisors (79114940).

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

63291880 is a wasteful number, since it uses less digits than its factorization.

63291880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582308 (or 1582304 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 63291880 is about 7955.6193976333. The cubic root of 63291880 is about 398.5192754003.

The spelling of 63291880 in words is "sixty-three million, two hundred ninety-one thousand, eight hundred eighty".