86918333 has 2 divisors, whose sum is σ = 86918334. Its totient is φ = 86918332.

The previous prime is 86918317. The next prime is 86918339. The reversal of 86918333 is 33381968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86918329 + 4 = 9323^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 86918333 - 2⁴ = 86918317 is a prime.

It is a super-2 number, since 2×86918333² = 15109593222997778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86918339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43459166 + 43459167.

It is an arithmetic number, because the mean of its divisors is an integer number (43459167).

Almost surely, 2^86918333 is an apocalyptic number.

It is an amenable number.

86918333 is a deficient number, since it is larger than the sum of its proper divisors (1).

86918333 is an equidigital number, since it uses as much as digits as its factorization.

86918333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 86918333 is about 9323.0002145232. Note that the first 3 decimals coincide. The cubic root of 86918333 is about 442.9660711140.

The spelling of 86918333 in words is "eighty-six million, nine hundred eighteen thousand, three hundred thirty-three".