63613087 has 2 divisors, whose sum is σ = 63613088. Its totient is φ = 63613086.

The previous prime is 63613079. The next prime is 63613093. The reversal of 63613087 is 78031636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63613087 - 2³ = 63613079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63610087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31806543 + 31806544.

It is an arithmetic number, because the mean of its divisors is an integer number (31806544).

Almost surely, 2^63613087 is an apocalyptic number.

63613087 is a deficient number, since it is larger than the sum of its proper divisors (1).

63613087 is an equidigital number, since it uses as much as digits as its factorization.

63613087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 63613087 is about 7975.7812783451. The cubic root of 63613087 is about 399.1923014052.

The spelling of 63613087 in words is "sixty-three million, six hundred thirteen thousand, eighty-seven".