86688190 has 16 divisors (see below), whose sum is σ = 157498992. Its totient is φ = 34350784.

The previous prime is 86688143. The next prime is 86688193. The reversal of 86688190 is 9188668.

It is a super-2 number, since 2×86688190² = 15029684570952200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86688190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86688193) 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, 39439 + ... + 41578.

It is an arithmetic number, because the mean of its divisors is an integer number (9843687).

Almost surely, 2^86688190 is an apocalyptic number.

86688190 is a deficient number, since it is larger than the sum of its proper divisors (70810802).

86688190 is a wasteful number, since it uses less digits than its factorization.

86688190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81131.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 86688190 is about 9310.6492791856. The cubic root of 86688190 is about 442.5747626026.

The spelling of 86688190 in words is "eighty-six million, six hundred eighty-eight thousand, one hundred ninety".