86308661 has 8 divisors (see below), whose sum is σ = 87316704. Its totient is φ = 85304560.

The previous prime is 86308657. The next prime is 86308721. The reversal of 86308661 is 16680368.

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 86308661 - 2² = 86308657 is a prime.

It is a super-2 number, since 2×86308661² = 14898369927225842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86308601) 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, 72491 + ... + 73671.

It is an arithmetic number, because the mean of its divisors is an integer number (10914588).

Almost surely, 2^86308661 is an apocalyptic number.

It is an amenable number.

86308661 is a deficient number, since it is larger than the sum of its proper divisors (1008043).

86308661 is a wasteful number, since it uses less digits than its factorization.

86308661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 86308661 is about 9290.2454757665. The cubic root of 86308661 is about 441.9279398369.

The spelling of 86308661 in words is "eighty-six million, three hundred eight thousand, six hundred sixty-one".