63309470 has 48 divisors (see below), whose sum is σ = 135432000. Its totient is φ = 21236544.

The previous prime is 63309457. The next prime is 63309487. The reversal of 63309470 is 7490336.

63309470 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 an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 21656 + ... + 24404.

It is an arithmetic number, because the mean of its divisors is an integer number (2821500).

Almost surely, 2^63309470 is an apocalyptic number.

63309470 is an abundant number, since it is smaller than the sum of its proper divisors (72122530).

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

63309470 is a wasteful number, since it uses less digits than its factorization.

63309470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 63309470 is about 7956.7248287219. The cubic root of 63309470 is about 398.5561906400.

The spelling of 63309470 in words is "sixty-three million, three hundred nine thousand, four hundred seventy".