68087887 has 8 divisors (see below), whose sum is σ = 81910400. Its totient is φ = 55289304.

The previous prime is 68087861. The next prime is 68087893. The reversal of 68087887 is 78878086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68087887 - 2¹¹ = 68085839 is a prime.

It is a super-2 number, since 2×68087887² = 9271920712249538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68087827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255837 + ... + 256102.

It is an arithmetic number, because the mean of its divisors is an integer number (10238800).

Almost surely, 2^68087887 is an apocalyptic number.

68087887 is a deficient number, since it is larger than the sum of its proper divisors (13822513).

68087887 is a wasteful number, since it uses less digits than its factorization.

68087887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511965.

The product of its (nonzero) digits is 1204224, while the sum is 52.

The square root of 68087887 is about 8251.5384626141. The cubic root of 68087887 is about 408.3412797935.

The spelling of 68087887 in words is "sixty-eight million, eighty-seven thousand, eight hundred eighty-seven".