86229919 has 2 divisors, whose sum is σ = 86229920. Its totient is φ = 86229918.

The previous prime is 86229917. The next prime is 86229937. The reversal of 86229919 is 91992268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86229919 - 2¹ = 86229917 is a prime.

It is a super-2 number, since 2×86229919² = 14871197861493122, which contains 22 as substring.

Together with 86229917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86229917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43114959 + 43114960.

It is an arithmetic number, because the mean of its divisors is an integer number (43114960).

Almost surely, 2^86229919 is an apocalyptic number.

86229919 is a deficient number, since it is larger than the sum of its proper divisors (1).

86229919 is an equidigital number, since it uses as much as digits as its factorization.

86229919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 46.

The square root of 86229919 is about 9286.0066228708. The cubic root of 86229919 is about 441.7935042067.

The spelling of 86229919 in words is "eighty-six million, two hundred twenty-nine thousand, nine hundred nineteen".