87164215 has 8 divisors (see below), whose sum is σ = 106070688. Its totient is φ = 68748960.

The previous prime is 87164201. The next prime is 87164243. The reversal of 87164215 is 51246178.

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

It is not a de Polignac number, because 87164215 - 2¹¹ = 87162167 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, 122412 + ... + 123121.

It is an arithmetic number, because the mean of its divisors is an integer number (13258836).

Almost surely, 2^87164215 is an apocalyptic number.

87164215 is a deficient number, since it is larger than the sum of its proper divisors (18906473).

87164215 is a wasteful number, since it uses less digits than its factorization.

87164215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245609.

The product of its digits is 13440, while the sum is 34.

The square root of 87164215 is about 9336.1777510928. The cubic root of 87164215 is about 443.3833779349.

The spelling of 87164215 in words is "eighty-seven million, one hundred sixty-four thousand, two hundred fifteen".