86808619 has 2 divisors, whose sum is σ = 86808620. Its totient is φ = 86808618.

The previous prime is 86808611. The next prime is 86808653. The reversal of 86808619 is 91680868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86808619 - 2³ = 86808611 is a prime.

It is a super-2 number, since 2×86808619² = 15071472665374322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86808611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43404309 + 43404310.

It is an arithmetic number, because the mean of its divisors is an integer number (43404310).

Almost surely, 2^86808619 is an apocalyptic number.

86808619 is a deficient number, since it is larger than the sum of its proper divisors (1).

86808619 is an equidigital number, since it uses as much as digits as its factorization.

86808619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 86808619 is about 9317.1143064792. The cubic root of 86808619 is about 442.7796123976.

The spelling of 86808619 in words is "eighty-six million, eight hundred eight thousand, six hundred nineteen".