87153887 has 2 divisors, whose sum is σ = 87153888. Its totient is φ = 87153886.

The previous prime is 87153863. The next prime is 87153943. The reversal of 87153887 is 78835178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87153887 - 2⁸ = 87153631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87153587) 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, 43576943 + 43576944.

It is an arithmetic number, because the mean of its divisors is an integer number (43576944).

Almost surely, 2^87153887 is an apocalyptic number.

87153887 is a deficient number, since it is larger than the sum of its proper divisors (1).

87153887 is an equidigital number, since it uses as much as digits as its factorization.

87153887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 47.

The square root of 87153887 is about 9335.6246175604. The cubic root of 87153887 is about 443.3658652266.

The spelling of 87153887 in words is "eighty-seven million, one hundred fifty-three thousand, eight hundred eighty-seven".