63673620 has 24 divisors (see below), whose sum is σ = 178286304. Its totient is φ = 16979616.

The previous prime is 63673607. The next prime is 63673657. The reversal of 63673620 is 2637636.

63673620 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 7 ways as a sum of consecutive naturals, for example, 530554 + ... + 530673.

It is an arithmetic number, because the mean of its divisors is an integer number (7428596).

Almost surely, 2^63673620 is an apocalyptic number.

63673620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63673620 is an abundant number, since it is smaller than the sum of its proper divisors (114612684).

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

63673620 is a wasteful number, since it uses less digits than its factorization.

63673620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061239 (or 1061237 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 63673620 is about 7979.5751766620. The cubic root of 63673620 is about 399.3188825224.

It can be divided in two parts, 636736 and 20, that added together give a triangular number (636756 = T₁₁₂₈).

The spelling of 63673620 in words is "sixty-three million, six hundred seventy-three thousand, six hundred twenty".