87589903 has 2 divisors, whose sum is σ = 87589904. Its totient is φ = 87589902.

The previous prime is 87589793. The next prime is 87589913. The reversal of 87589903 is 30998578.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87589903 - 2²¹ = 85492751 is a prime.

It is a super-2 number, since 2×87589903² = 15343982215098818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87589913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43794951 + 43794952.

It is an arithmetic number, because the mean of its divisors is an integer number (43794952).

Almost surely, 2^87589903 is an apocalyptic number.

87589903 is a deficient number, since it is larger than the sum of its proper divisors (1).

87589903 is an equidigital number, since it uses as much as digits as its factorization.

87589903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 87589903 is about 9358.9477506822. The cubic root of 87589903 is about 444.1039968902.

The spelling of 87589903 in words is "eighty-seven million, five hundred eighty-nine thousand, nine hundred three".