86813447 has 18 divisors (see below), whose sum is σ = 102587688. Its totient is φ = 73247832.

The previous prime is 86813437. The next prime is 86813449. The reversal of 86813447 is 74431868.

It is a de Polignac number, because none of the positive numbers 2^k-86813447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86813449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 519758 + ... + 519924.

It is an arithmetic number, because the mean of its divisors is an integer number (5699316).

Almost surely, 2^86813447 is an apocalyptic number.

86813447 is a deficient number, since it is larger than the sum of its proper divisors (15774241).

86813447 is a wasteful number, since it uses less digits than its factorization.

86813447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 277 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 86813447 is about 9317.3733959738. The cubic root of 86813447 is about 442.7878208772.

The spelling of 86813447 in words is "eighty-six million, eight hundred thirteen thousand, four hundred forty-seven".