86560981 has 8 divisors (see below), whose sum is σ = 95203584. Its totient is φ = 78201840.

The previous prime is 86560973. The next prime is 86561039. The reversal of 86560981 is 18906568.

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 86560981 - 2³ = 86560973 is a prime.

It is a super-2 number, since 2×86560981² = 14985606863364722, 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 (86560931) 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, 70225 + ... + 71446.

It is an arithmetic number, because the mean of its divisors is an integer number (11900448).

Almost surely, 2^86560981 is an apocalyptic number.

It is an amenable number.

86560981 is a deficient number, since it is larger than the sum of its proper divisors (8642603).

86560981 is a wasteful number, since it uses less digits than its factorization.

86560981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141731.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 86560981 is about 9303.8154001463. The cubic root of 86560981 is about 442.3581738762.

The spelling of 86560981 in words is "eighty-six million, five hundred sixty thousand, nine hundred eighty-one".