86530019 has 2 divisors, whose sum is σ = 86530020. Its totient is φ = 86530018.

The previous prime is 86530007. The next prime is 86530027. The reversal of 86530019 is 91003568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86530019 - 2²⁴ = 69752803 is a prime.

It is a super-2 number, since 2×86530019² = 14974888376280722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86530069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43265009 + 43265010.

It is an arithmetic number, because the mean of its divisors is an integer number (43265010).

Almost surely, 2^86530019 is an apocalyptic number.

86530019 is a deficient number, since it is larger than the sum of its proper divisors (1).

86530019 is an equidigital number, since it uses as much as digits as its factorization.

86530019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 86530019 is about 9302.1513103153. The cubic root of 86530019 is about 442.3054252168.

The spelling of 86530019 in words is "eighty-six million, five hundred thirty thousand, nineteen".