86309661 has 8 divisors (see below), whose sum is σ = 115123680. Its totient is φ = 57517712.

The previous prime is 86309621. The next prime is 86309689. The reversal of 86309661 is 16690368.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86309661 - 2¹⁵ = 86276893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86309621) 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, 9286 + ... + 16088.

It is an arithmetic number, because the mean of its divisors is an integer number (14390460).

Almost surely, 2^86309661 is an apocalyptic number.

It is an amenable number.

86309661 is a deficient number, since it is larger than the sum of its proper divisors (28814019).

86309661 is a wasteful number, since it uses less digits than its factorization.

86309661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11035.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 86309661 is about 9290.2992955017. The cubic root of 86309661 is about 441.9296466036.

The spelling of 86309661 in words is "eighty-six million, three hundred nine thousand, six hundred sixty-one".