86172343 has 16 divisors (see below), whose sum is σ = 91155456. Its totient is φ = 81357120.

The previous prime is 86172313. The next prime is 86172367. The reversal of 86172343 is 34327168.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86172343 - 2⁹ = 86171831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86172299 and 86172308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86172313) 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, 275155 + ... + 275467.

It is an arithmetic number, because the mean of its divisors is an integer number (5697216).

Almost surely, 2^86172343 is an apocalyptic number.

86172343 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

86172343 is a deficient number, since it is larger than the sum of its proper divisors (4983113).

86172343 is a wasteful number, since it uses less digits than its factorization.

86172343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534.

The product of its digits is 24192, while the sum is 34.

The square root of 86172343 is about 9282.9059566496. The cubic root of 86172343 is about 441.6951533226.

The spelling of 86172343 in words is "eighty-six million, one hundred seventy-two thousand, three hundred forty-three".