87047085 has 16 divisors (see below), whose sum is σ = 139392000. Its totient is φ = 46386240.

The previous prime is 87047083. The next prime is 87047143. The reversal of 87047085 is 58074078.

It is not a de Polignac number, because 87047085 - 2¹ = 87047083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87047083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30291 + ... + 33039.

It is an arithmetic number, because the mean of its divisors is an integer number (8712000).

Almost surely, 2^87047085 is an apocalyptic number.

It is an amenable number.

87047085 is a deficient number, since it is larger than the sum of its proper divisors (52344915).

87047085 is a wasteful number, since it uses less digits than its factorization.

87047085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 87047085 is about 9329.9027326120. The cubic root of 87047085 is about 443.1846848706.

The spelling of 87047085 in words is "eighty-seven million, forty-seven thousand, eighty-five".