86019671 has 2 divisors, whose sum is σ = 86019672. Its totient is φ = 86019670.

The previous prime is 86019649. The next prime is 86019679. The reversal of 86019671 is 17691068.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86019671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86019679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43009835 + 43009836.

It is an arithmetic number, because the mean of its divisors is an integer number (43009836).

Almost surely, 2^86019671 is an apocalyptic number.

86019671 is a deficient number, since it is larger than the sum of its proper divisors (1).

86019671 is an equidigital number, since it uses as much as digits as its factorization.

86019671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 86019671 is about 9274.6790240957. The cubic root of 86019671 is about 441.4341479002.

The spelling of 86019671 in words is "eighty-six million, nineteen thousand, six hundred seventy-one".