63198091 has 8 divisors (see below), whose sum is σ = 69577200. Its totient is φ = 56924640.

The previous prime is 63198077. The next prime is 63198103. The reversal of 63198091 is 19089136.

63198091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63198091 - 2¹⁷ = 63067019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63198091.

It is not an unprimeable number, because it can be changed into a prime (63198041) by changing a digit.

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, 25156 + ... + 27553.

It is an arithmetic number, because the mean of its divisors is an integer number (8697150).

Almost surely, 2^63198091 is an apocalyptic number.

63198091 is a deficient number, since it is larger than the sum of its proper divisors (6379109).

63198091 is a wasteful number, since it uses less digits than its factorization.

63198091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52829.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 63198091 is about 7949.7226995663. The cubic root of 63198091 is about 398.3223296428.

The spelling of 63198091 in words is "sixty-three million, one hundred ninety-eight thousand, ninety-one".