86651694 has 40 divisors (see below), whose sum is σ = 194965848. Its totient is φ = 28764720.

The previous prime is 86651687. The next prime is 86651699. The reversal of 86651694 is 49615668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86651699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43909 + ... + 45839.

Almost surely, 2^86651694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86651694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97482924).

86651694 is an abundant number, since it is smaller than the sum of its proper divisors (108314154).

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

86651694 is a wasteful number, since it uses less digits than its factorization.

86651694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222 (or 2213 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 86651694 is about 9308.6891665798. The cubic root of 86651694 is about 442.5126454301.

The spelling of 86651694 in words is "eighty-six million, six hundred fifty-one thousand, six hundred ninety-four".