87006985 has 16 divisors (see below), whose sum is σ = 118359360. Its totient is φ = 60868800.

The previous prime is 87006971. The next prime is 87007027. The reversal of 87006985 is 58960078.

It is a happy number.

It is not a de Polignac number, because 87006985 - 2⁹ = 87006473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33991 + ... + 36460.

It is an arithmetic number, because the mean of its divisors is an integer number (7397460).

Almost surely, 2^87006985 is an apocalyptic number.

It is an amenable number.

87006985 is a deficient number, since it is larger than the sum of its proper divisors (31352375).

87006985 is a wasteful number, since it uses less digits than its factorization.

87006985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70488.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 87006985 is about 9327.7534808763. The cubic root of 87006985 is about 443.1166204220.

The spelling of 87006985 in words is "eighty-seven million, six thousand, nine hundred eighty-five".