86345019 has 12 divisors (see below), whose sum is σ = 124987200. Its totient is φ = 57440304.

The previous prime is 86345011. The next prime is 86345027. The reversal of 86345019 is 91054368.

86345019 is a `hidden beast` number, since 8 + 634 + 5 + 0 + 19 = 666.

It is an interprime number because it is at equal distance from previous prime (86345011) and next prime (86345027).

It is not a de Polignac number, because 86345019 - 2³ = 86345011 is a prime.

It is a super-2 number, since 2×86345019² = 14910924612220722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (86345011) 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 11 ways as a sum of consecutive naturals, for example, 5704 + ... + 14325.

It is an arithmetic number, because the mean of its divisors is an integer number (10415600).

Almost surely, 2^86345019 is an apocalyptic number.

86345019 is a deficient number, since it is larger than the sum of its proper divisors (38642181).

86345019 is a wasteful number, since it uses less digits than its factorization.

86345019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20514 (or 20511 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 86345019 is about 9292.2020533348. The cubic root of 86345019 is about 441.9899859869.

The spelling of 86345019 in words is "eighty-six million, three hundred forty-five thousand, nineteen".