86667210 has 48 divisors (see below), whose sum is σ = 257527296. Its totient is φ = 19809504.

The previous prime is 86667199. The next prime is 86667211. The reversal of 86667210 is 1276668.

It is a happy number.

It is a super-2 number, since 2×86667210² = 15022410578368200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86667211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68154 + ... + 69413.

It is an arithmetic number, because the mean of its divisors is an integer number (5365152).

Almost surely, 2^86667210 is an apocalyptic number.

86667210 is an abundant number, since it is smaller than the sum of its proper divisors (170860086).

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

86667210 is a wasteful number, since it uses less digits than its factorization.

86667210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137587 (or 137584 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 86667210 is about 9309.5225441480. The cubic root of 86667210 is about 442.5390562099.

It can be divided in two parts, 8666 and 7210, that added together give a square (15876 = 126²).

The spelling of 86667210 in words is "eighty-six million, six hundred sixty-seven thousand, two hundred ten".