86398145 has 8 divisors (see below), whose sum is σ = 106480104. Its totient is φ = 67250304.

The previous prime is 86398141. The next prime is 86398157. The reversal of 86398145 is 54189368.

It can be written as a sum of positive squares in 4 ways, for example, as 3806401 + 82591744 = 1951^2 + 9088^2 .

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 86398145 - 2² = 86398141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86398096 and 86398105.

It is not an unprimeable number, because it can be changed into a prime (86398141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233324 + ... + 233693.

It is an arithmetic number, because the mean of its divisors is an integer number (13310013).

Almost surely, 2^86398145 is an apocalyptic number.

It is an amenable number.

86398145 is a deficient number, since it is larger than the sum of its proper divisors (20081959).

86398145 is a wasteful number, since it uses less digits than its factorization.

86398145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467059.

The product of its digits is 207360, while the sum is 44.

The square root of 86398145 is about 9295.0602472496. The cubic root of 86398145 is about 442.0806159816.

The spelling of 86398145 in words is "eighty-six million, three hundred ninety-eight thousand, one hundred forty-five".