63600091 has 2 divisors, whose sum is σ = 63600092. Its totient is φ = 63600090.

The previous prime is 63600079. The next prime is 63600101. The reversal of 63600091 is 19000636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63600091 - 2¹¹ = 63598043 is a prime.

It is not a weakly prime, because it can be changed into another prime (63600001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31800045 + 31800046.

It is an arithmetic number, because the mean of its divisors is an integer number (31800046).

Almost surely, 2^63600091 is an apocalyptic number.

63600091 is a deficient number, since it is larger than the sum of its proper divisors (1).

63600091 is an equidigital number, since it uses as much as digits as its factorization.

63600091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 63600091 is about 7974.9665203059. The cubic root of 63600091 is about 399.1651148795.

The spelling of 63600091 in words is "sixty-three million, six hundred thousand, ninety-one".