86115471 has 24 divisors (see below), whose sum is σ = 128641680. Its totient is φ = 51158016.

The previous prime is 86115461. The next prime is 86115479. The reversal of 86115471 is 17451168.

It is a happy number.

It is not a de Polignac number, because 86115471 - 2⁷ = 86115343 is a prime.

It is a super-3 number, since 3×86115471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86115479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11775 + ... + 17631.

It is an arithmetic number, because the mean of its divisors is an integer number (5360070).

Almost surely, 2^86115471 is an apocalyptic number.

86115471 is a deficient number, since it is larger than the sum of its proper divisors (42526209).

86115471 is a wasteful number, since it uses less digits than its factorization.

86115471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915 (or 5902 counting only the distinct ones).

The product of its digits is 6720, while the sum is 33.

The square root of 86115471 is about 9279.8421861581. The cubic root of 86115471 is about 441.5979619881.

The spelling of 86115471 in words is "eighty-six million, one hundred fifteen thousand, four hundred seventy-one".