63479620 has 24 divisors (see below), whose sum is σ = 133623000. Its totient is φ = 25331712.

The previous prime is 63479617. The next prime is 63479629. The reversal of 63479620 is 2697436.

63479620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5597956 + 57881664 = 2366^2 + 7608^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63479620.

It is not an unprimeable number, because it can be changed into a prime (63479629) 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, 5446 + ... + 12514.

It is an arithmetic number, because the mean of its divisors is an integer number (5567625).

Almost surely, 2^63479620 is an apocalyptic number.

It is an amenable number.

63479620 is an abundant number, since it is smaller than the sum of its proper divisors (70143380).

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

63479620 is a wasteful number, since it uses less digits than its factorization.

63479620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7527 (or 7525 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 63479620 is about 7967.4098677048. The cubic root of 63479620 is about 398.9129233372.

The spelling of 63479620 in words is "sixty-three million, four hundred seventy-nine thousand, six hundred twenty".