63345980 has 24 divisors (see below), whose sum is σ = 133617120. Its totient is φ = 25225920.

The previous prime is 63345973. The next prime is 63345983. The reversal of 63345980 is 8954336.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63345983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 11495.

It is an arithmetic number, because the mean of its divisors is an integer number (5567380).

Almost surely, 2^63345980 is an apocalyptic number.

It is an amenable number.

63345980 is an abundant number, since it is smaller than the sum of its proper divisors (70271140).

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

63345980 is a wasteful number, since it uses less digits than its factorization.

63345980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14069 (or 14067 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 63345980 is about 7959.0187837446. The cubic root of 63345980 is about 398.6327905031.

The spelling of 63345980 in words is "sixty-three million, three hundred forty-five thousand, nine hundred eighty".