86747447 has 8 divisors (see below), whose sum is σ = 92017296. Its totient is φ = 81496192.

The previous prime is 86747411. The next prime is 86747473. The reversal of 86747447 is 74474768.

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

It is a cyclic number.

It is not a de Polignac number, because 86747447 - 2¹⁰ = 86746423 is a prime.

It is a super-2 number, since 2×86747447² = 15050239122035618, which contains 22 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 (86747047) 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, 5633 + ... + 14325.

It is an arithmetic number, because the mean of its divisors is an integer number (11502162).

Almost surely, 2^86747447 is an apocalyptic number.

86747447 is a deficient number, since it is larger than the sum of its proper divisors (5269849).

86747447 is a wasteful number, since it uses less digits than its factorization.

86747447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9297.

The product of its digits is 1053696, while the sum is 47.

The square root of 86747447 is about 9313.8309518694. The cubic root of 86747447 is about 442.6755824849.

The spelling of 86747447 in words is "eighty-six million, seven hundred forty-seven thousand, four hundred forty-seven".