87171206 has 8 divisors (see below), whose sum is σ = 138448440. Its totient is φ = 41021728.

The previous prime is 87171179. The next prime is 87171233. The reversal of 87171206 is 60217178.

It is an interprime number because it is at equal distance from previous prime (87171179) and next prime (87171233).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281896 + ... + 1281963.

It is an arithmetic number, because the mean of its divisors is an integer number (17306055).

Almost surely, 2^87171206 is an apocalyptic number.

87171206 is a deficient number, since it is larger than the sum of its proper divisors (51277234).

87171206 is a wasteful number, since it uses less digits than its factorization.

87171206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563878.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 87171206 is about 9336.5521473400. The cubic root of 87171206 is about 443.3952314627.

The spelling of 87171206 in words is "eighty-seven million, one hundred seventy-one thousand, two hundred six".