86381623 has 2 divisors, whose sum is σ = 86381624. Its totient is φ = 86381622.

The previous prime is 86381611. The next prime is 86381627. The reversal of 86381623 is 32618368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86381623 - 2¹⁷ = 86250551 is a prime.

It is a super-2 number, since 2×86381623² = 14923569584228258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86381627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43190811 + 43190812.

It is an arithmetic number, because the mean of its divisors is an integer number (43190812).

Almost surely, 2^86381623 is an apocalyptic number.

86381623 is a deficient number, since it is larger than the sum of its proper divisors (1).

86381623 is an equidigital number, since it uses as much as digits as its factorization.

86381623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 86381623 is about 9294.1714531205. The cubic root of 86381623 is about 442.0524343519.

The spelling of 86381623 in words is "eighty-six million, three hundred eighty-one thousand, six hundred twenty-three".