87955663 has 2 divisors, whose sum is σ = 87955664. Its totient is φ = 87955662.

The previous prime is 87955661. The next prime is 87955687. The reversal of 87955663 is 36655978.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87955663 - 2¹ = 87955661 is a prime.

Together with 87955661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87955661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43977831 + 43977832.

It is an arithmetic number, because the mean of its divisors is an integer number (43977832).

Almost surely, 2^87955663 is an apocalyptic number.

87955663 is a deficient number, since it is larger than the sum of its proper divisors (1).

87955663 is an equidigital number, since it uses as much as digits as its factorization.

87955663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 49.

The square root of 87955663 is about 9378.4680518729. The cubic root of 87955663 is about 444.7213051064.

The spelling of 87955663 in words is "eighty-seven million, nine hundred fifty-five thousand, six hundred sixty-three".