87030085 has 8 divisors (see below), whose sum is σ = 106983576. Its totient is φ = 67925760.

The previous prime is 87030067. The next prime is 87030109. The reversal of 87030085 is 58003078.

It can be written as a sum of positive squares in 4 ways, for example, as 6640929 + 80389156 = 2577^2 + 8966^2 .

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

It is not a de Polignac number, because 87030085 - 2⁹ = 87029573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212064 + ... + 212473.

It is an arithmetic number, because the mean of its divisors is an integer number (13372947).

Almost surely, 2^87030085 is an apocalyptic number.

It is an amenable number.

87030085 is a deficient number, since it is larger than the sum of its proper divisors (19953491).

87030085 is a wasteful number, since it uses less digits than its factorization.

87030085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424583.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 87030085 is about 9328.9916389715. The cubic root of 87030085 is about 443.1558321711.

The spelling of 87030085 in words is "eighty-seven million, thirty thousand, eighty-five".