87070215 has 16 divisors (see below), whose sum is σ = 140046336. Its totient is φ = 46192800.

The previous prime is 87070187. The next prime is 87070219. The reversal of 87070215 is 51207078.

It is a happy number.

It is not a de Polignac number, because 87070215 - 2²² = 82875911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87070219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12331 + ... + 18060.

It is an arithmetic number, because the mean of its divisors is an integer number (8752896).

Almost surely, 2^87070215 is an apocalyptic number.

87070215 is a deficient number, since it is larger than the sum of its proper divisors (52976121).

87070215 is a wasteful number, since it uses less digits than its factorization.

87070215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30590.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 87070215 is about 9331.1422130412. The cubic root of 87070215 is about 443.2239354821.

The spelling of 87070215 in words is "eighty-seven million, seventy thousand, two hundred fifteen".