63195820 has 12 divisors (see below), whose sum is σ = 132711264. Its totient is φ = 25278320.

The previous prime is 63195809. The next prime is 63195823. The reversal of 63195820 is 2859136.

It is not an unprimeable number, because it can be changed into a prime (63195823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1579876 + ... + 1579915.

It is an arithmetic number, because the mean of its divisors is an integer number (11059272).

Almost surely, 2^63195820 is an apocalyptic number.

It is an amenable number.

63195820 is an abundant number, since it is smaller than the sum of its proper divisors (69515444).

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

63195820 is a wasteful number, since it uses less digits than its factorization.

63195820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159800 (or 3159798 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 63195820 is about 7949.5798631123. The cubic root of 63195820 is about 398.3175583972.

The spelling of 63195820 in words is "sixty-three million, one hundred ninety-five thousand, eight hundred twenty".