87007218 has 16 divisors (see below), whose sum is σ = 174632736. Its totient is φ = 28899360.

The previous prime is 87007211. The next prime is 87007231. The reversal of 87007218 is 81270078.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87007211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23923 + ... + 27318.

It is an arithmetic number, because the mean of its divisors is an integer number (10914546).

Almost surely, 2^87007218 is an apocalyptic number.

87007218 is an abundant number, since it is smaller than the sum of its proper divisors (87625518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87007218 is a wasteful number, since it uses less digits than its factorization.

87007218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51529.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 87007218 is about 9327.7659704776. The cubic root of 87007218 is about 443.1170159691.

The spelling of 87007218 in words is "eighty-seven million, seven thousand, two hundred eighteen".