63391960 has 32 divisors (see below), whose sum is σ = 145054800. Its totient is φ = 24926080.

The previous prime is 63391949. The next prime is 63391967. The reversal of 63391960 is 6919336.

63391960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63391967) 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 7 ways as a sum of consecutive naturals, for example, 11071 + ... + 15790.

Almost surely, 2^63391960 is an apocalyptic number.

It is an amenable number.

63391960 is an abundant number, since it is smaller than the sum of its proper divisors (81662840).

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

63391960 is a wasteful number, since it uses less digits than its factorization.

63391960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26931 (or 26927 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 63391960 is about 7961.9068067894. The cubic root of 63391960 is about 398.7292170521.

The spelling of 63391960 in words is "sixty-three million, three hundred ninety-one thousand, nine hundred sixty".