86700521 has 8 divisors (see below), whose sum is σ = 90386688. Its totient is φ = 83070000.

The previous prime is 86700499. The next prime is 86700529. The reversal of 86700521 is 12500768.

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 86700521 - 2⁶ = 86700457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86700529) 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, 10715 + ... + 16976.

It is an arithmetic number, because the mean of its divisors is an integer number (11298336).

Almost surely, 2^86700521 is an apocalyptic number.

It is an amenable number.

86700521 is a deficient number, since it is larger than the sum of its proper divisors (3686167).

86700521 is a wasteful number, since it uses less digits than its factorization.

86700521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27823.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 86700521 is about 9311.3114543549. The cubic root of 86700521 is about 442.5957463555.

The spelling of 86700521 in words is "eighty-six million, seven hundred thousand, five hundred twenty-one".