86843761 has 3 divisors (see below), whose sum is σ = 86853081. Its totient is φ = 86834442.

The previous prime is 86843759. The next prime is 86843821. The reversal of 86843761 is 16734868.

The square root of 86843761 is 9319.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 86843761 - 2¹ = 86843759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86843161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4660 + ... + 13978.

It is an arithmetic number, because the mean of its divisors is an integer number (28951027).

Almost surely, 2^86843761 is an apocalyptic number.

86843761 is the 9319-th square number.

86843761 is the 4660-th centered octagonal number.

It is an amenable number.

86843761 is a deficient number, since it is larger than the sum of its proper divisors (9320).

86843761 is an frugal number, since it uses more digits than its factorization.

86843761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18638 (or 9319 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The cubic root of 86843761 is about 442.8393532470.

The spelling of 86843761 in words is "eighty-six million, eight hundred forty-three thousand, seven hundred sixty-one".