87683887 has 2 divisors, whose sum is σ = 87683888. Its totient is φ = 87683886.

The previous prime is 87683881. The next prime is 87683891. The reversal of 87683887 is 78838678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87683887 - 2¹⁹ = 87159599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87683881) 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, 43841943 + 43841944.

It is an arithmetic number, because the mean of its divisors is an integer number (43841944).

Almost surely, 2^87683887 is an apocalyptic number.

87683887 is a deficient number, since it is larger than the sum of its proper divisors (1).

87683887 is an equidigital number, since it uses as much as digits as its factorization.

87683887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 55.

The square root of 87683887 is about 9363.9674817889. The cubic root of 87683887 is about 444.2627813656.

The spelling of 87683887 in words is "eighty-seven million, six hundred eighty-three thousand, eight hundred eighty-seven".