63199620 has 144 divisors (see below), whose sum is σ = 213071040. Its totient is φ = 15033600.

The previous prime is 63199597. The next prime is 63199627. The reversal of 63199620 is 2699136.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (63199627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116550 + ... + 117090.

It is an arithmetic number, because the mean of its divisors is an integer number (1479660).

Almost surely, 2^63199620 is an apocalyptic number.

63199620 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 63199620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106535520).

63199620 is an abundant number, since it is smaller than the sum of its proper divisors (149871420).

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

63199620 is a wasteful number, since it uses less digits than its factorization.

63199620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 63199620 is about 7949.8188658610. The cubic root of 63199620 is about 398.3255419230.

The spelling of 63199620 in words is "sixty-three million, one hundred ninety-nine thousand, six hundred twenty".