86619471 has 16 divisors (see below), whose sum is σ = 123840000. Its totient is φ = 53659008.

The previous prime is 86619469. The next prime is 86619523. The reversal of 86619471 is 17491668.

It is not a de Polignac number, because 86619471 - 2¹ = 86619469 is a prime.

It is a super-3 number, since 3×86619471³ (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 (86629471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6721 + ... + 14778.

It is an arithmetic number, because the mean of its divisors is an integer number (7740000).

Almost surely, 2^86619471 is an apocalyptic number.

86619471 is a deficient number, since it is larger than the sum of its proper divisors (37220529).

86619471 is a wasteful number, since it uses less digits than its factorization.

86619471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21598.

The product of its digits is 72576, while the sum is 42.

The square root of 86619471 is about 9306.9582034089. The cubic root of 86619471 is about 442.4577865186.

The spelling of 86619471 in words is "eighty-six million, six hundred nineteen thousand, four hundred seventy-one".