63536866 has 4 divisors (see below), whose sum is σ = 95305302. Its totient is φ = 31768432.

The previous prime is 63536861. The next prime is 63536867. The reversal of 63536866 is 66863536.

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

It can be written as a sum of positive squares in only one way, i.e., 63536841 + 25 = 7971^2 + 5^2 .

It is a super-2 number, since 2×63536866² = 8073866682203912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63536861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15884215 + ... + 15884218.

Almost surely, 2^63536866 is an apocalyptic number.

63536866 is a deficient number, since it is larger than the sum of its proper divisors (31768436).

63536866 is a wasteful number, since it uses less digits than its factorization.

63536866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31768435.

The product of its digits is 466560, while the sum is 43.

The square root of 63536866 is about 7971.0015681845. The cubic root of 63536866 is about 399.0328006988.

The spelling of 63536866 in words is "sixty-three million, five hundred thirty-six thousand, eight hundred sixty-six".