86519743 has 2 divisors, whose sum is σ = 86519744. Its totient is φ = 86519742.

The previous prime is 86519737. The next prime is 86519779. The reversal of 86519743 is 34791568.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86519743 - 2⁹ = 86519231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86519743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86219743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43259871 + 43259872.

It is an arithmetic number, because the mean of its divisors is an integer number (43259872).

Almost surely, 2^86519743 is an apocalyptic number.

86519743 is a deficient number, since it is larger than the sum of its proper divisors (1).

86519743 is an equidigital number, since it uses as much as digits as its factorization.

86519743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 86519743 is about 9301.5989485679. The cubic root of 86519743 is about 442.2879156460.

The spelling of 86519743 in words is "eighty-six million, five hundred nineteen thousand, seven hundred forty-three".