86187212 has 12 divisors (see below), whose sum is σ = 159699960. Its totient is φ = 40558656.

The previous prime is 86187203. The next prime is 86187221. The reversal of 86187212 is 21278168.

It is an interprime number because it is at equal distance from previous prime (86187203) and next prime (86187221).

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, 633662 + ... + 633797.

It is an arithmetic number, because the mean of its divisors is an integer number (13308330).

Almost surely, 2^86187212 is an apocalyptic number.

It is an amenable number.

86187212 is a deficient number, since it is larger than the sum of its proper divisors (73512748).

86187212 is a wasteful number, since it uses less digits than its factorization.

86187212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267480 (or 1267478 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 86187212 is about 9283.7068027809. The cubic root of 86187212 is about 441.7205566299.

The spelling of 86187212 in words is "eighty-six million, one hundred eighty-seven thousand, two hundred twelve".