86516511 has 8 divisors (see below), whose sum is σ = 117532080. Its totient is φ = 56589312.

The previous prime is 86516489. The next prime is 86516513. The reversal of 86516511 is 11561568.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86516511 - 2⁶ = 86516447 is a prime.

It is a super-2 number, since 2×86516511² = 14970213351226242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86516513) 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, 271906 + ... + 272223.

It is an arithmetic number, because the mean of its divisors is an integer number (14691510).

Almost surely, 2^86516511 is an apocalyptic number.

86516511 is a deficient number, since it is larger than the sum of its proper divisors (31015569).

86516511 is a wasteful number, since it uses less digits than its factorization.

86516511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544185.

The product of its digits is 7200, while the sum is 33.

The square root of 86516511 is about 9301.4252133746. The cubic root of 86516511 is about 442.2824082620.

The spelling of 86516511 in words is "eighty-six million, five hundred sixteen thousand, five hundred eleven".