63835980 has 96 divisors (see below), whose sum is σ = 193880064. Its totient is φ = 15600384.

The previous prime is 63835979. The next prime is 63835987. The reversal of 63835980 is 8953836.

It is not an unprimeable number, because it can be changed into a prime (63835987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173757 + ... + 174123.

It is an arithmetic number, because the mean of its divisors is an integer number (2019584).

Almost surely, 2^63835980 is an apocalyptic number.

63835980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63835980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96940032).

63835980 is an abundant number, since it is smaller than the sum of its proper divisors (130044084).

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

63835980 is a wasteful number, since it uses less digits than its factorization.

63835980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 63835980 is about 7989.7421735623. The cubic root of 63835980 is about 399.6579993389.

The spelling of 63835980 in words is "sixty-three million, eight hundred thirty-five thousand, nine hundred eighty".