86913471 has 8 divisors (see below), whose sum is σ = 117784624. Its totient is φ = 56992320.

The previous prime is 86913461. The next prime is 86913511. The reversal of 86913471 is 17431968.

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

It is not a de Polignac number, because 86913471 - 2¹¹ = 86911423 is a prime.

It is a super-3 number, since 3×86913471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86913461) 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, 237286 + ... + 237651.

It is an arithmetic number, because the mean of its divisors is an integer number (14723078).

Almost surely, 2^86913471 is an apocalyptic number.

86913471 is a deficient number, since it is larger than the sum of its proper divisors (30871153).

86913471 is a wasteful number, since it uses less digits than its factorization.

86913471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475001.

The product of its digits is 36288, while the sum is 39.

The square root of 86913471 is about 9322.7394579061. The cubic root of 86913471 is about 442.9578114787.

The spelling of 86913471 in words is "eighty-six million, nine hundred thirteen thousand, four hundred seventy-one".