86616419 has 2 divisors, whose sum is σ = 86616420. Its totient is φ = 86616418.

The previous prime is 86616391. The next prime is 86616427. The reversal of 86616419 is 91461668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86616419 - 2¹⁶ = 86550883 is a prime.

It is a super-2 number, since 2×86616419² = 15004808080767122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86616499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43308209 + 43308210.

It is an arithmetic number, because the mean of its divisors is an integer number (43308210).

Almost surely, 2^86616419 is an apocalyptic number.

86616419 is a deficient number, since it is larger than the sum of its proper divisors (1).

86616419 is an equidigital number, since it uses as much as digits as its factorization.

86616419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 86616419 is about 9306.7942386194. The cubic root of 86616419 is about 442.4525898539.

The spelling of 86616419 in words is "eighty-six million, six hundred sixteen thousand, four hundred nineteen".