86619443 has 2 divisors, whose sum is σ = 86619444. Its totient is φ = 86619442.

The previous prime is 86619419. The next prime is 86619469. The reversal of 86619443 is 34491668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86619443 - 2¹⁴ = 86603059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86619443.

It is not a weakly prime, because it can be changed into another prime (86619943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43309721 + 43309722.

It is an arithmetic number, because the mean of its divisors is an integer number (43309722).

Almost surely, 2^86619443 is an apocalyptic number.

86619443 is a deficient number, since it is larger than the sum of its proper divisors (1).

86619443 is an equidigital number, since it uses as much as digits as its factorization.

86619443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 86619443 is about 9306.9566991579. The cubic root of 86619443 is about 442.4577388433.

The spelling of 86619443 in words is "eighty-six million, six hundred nineteen thousand, four hundred forty-three".