87068647 has 4 divisors (see below), whose sum is σ = 87839280. Its totient is φ = 86298016.

The previous prime is 87068617. The next prime is 87068671. The reversal of 87068647 is 74686078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87068647 - 2⁷ = 87068519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87068597 and 87068606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87068617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385147 + ... + 385372.

It is an arithmetic number, because the mean of its divisors is an integer number (21959820).

Almost surely, 2^87068647 is an apocalyptic number.

87068647 is a deficient number, since it is larger than the sum of its proper divisors (770633).

87068647 is a wasteful number, since it uses less digits than its factorization.

87068647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770632.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 87068647 is about 9331.0581929382. The cubic root of 87068647 is about 443.2212748734.

The spelling of 87068647 in words is "eighty-seven million, sixty-eight thousand, six hundred forty-seven".