63198937 has 4 divisors (see below), whose sum is σ = 63601636. Its totient is φ = 62796240.

The previous prime is 63198929. The next prime is 63198983. The reversal of 63198937 is 73989136.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36614601 + 26584336 = 6051^2 + 5156^2 .

It is a cyclic number.

It is not a de Polignac number, because 63198937 - 2³ = 63198929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63198907) 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, 201114 + ... + 201427.

It is an arithmetic number, because the mean of its divisors is an integer number (15900409).

Almost surely, 2^63198937 is an apocalyptic number.

It is an amenable number.

63198937 is a deficient number, since it is larger than the sum of its proper divisors (402699).

63198937 is a wasteful number, since it uses less digits than its factorization.

63198937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402698.

The product of its digits is 244944, while the sum is 46.

The square root of 63198937 is about 7949.7759087914. The cubic root of 63198937 is about 398.3241070129.

The spelling of 63198937 in words is "sixty-three million, one hundred ninety-eight thousand, nine hundred thirty-seven".