86999212 has 24 divisors (see below), whose sum is σ = 156396240. Its totient is φ = 42320640.

The previous prime is 86999201. The next prime is 86999219. The reversal of 86999212 is 21299968.

It is not an unprimeable number, because it can be changed into a prime (86999219) 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, 101088 + ... + 101944.

It is an arithmetic number, because the mean of its divisors is an integer number (6516510).

Almost surely, 2^86999212 is an apocalyptic number.

86999212 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

86999212 is a deficient number, since it is larger than the sum of its proper divisors (69397028).

86999212 is a wasteful number, since it uses less digits than its factorization.

86999212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1519 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 86999212 is about 9327.3368117593. The cubic root of 86999212 is about 443.1034243624.

The spelling of 86999212 in words is "eighty-six million, nine hundred ninety-nine thousand, two hundred twelve".