86165761 has 4 divisors (see below), whose sum is σ = 93999024. Its totient is φ = 78332500.

The previous prime is 86165759. The next prime is 86165803. The reversal of 86165761 is 16756168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86165761 - 2¹ = 86165759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86165731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3916615 + ... + 3916636.

It is an arithmetic number, because the mean of its divisors is an integer number (23499756).

Almost surely, 2^86165761 is an apocalyptic number.

It is an amenable number.

86165761 is a deficient number, since it is larger than the sum of its proper divisors (7833263).

86165761 is a wasteful number, since it uses less digits than its factorization.

86165761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833262.

The product of its digits is 60480, while the sum is 40.

The square root of 86165761 is about 9282.5514272747. The cubic root of 86165761 is about 441.6839072104.

The spelling of 86165761 in words is "eighty-six million, one hundred sixty-five thousand, seven hundred sixty-one".