86084939 has 2 divisors, whose sum is σ = 86084940. Its totient is φ = 86084938.

The previous prime is 86084927. The next prime is 86084941. The reversal of 86084939 is 93948068.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86084939 is a prime.

Together with 86084941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86084893 and 86084902.

It is not a weakly prime, because it can be changed into another prime (86084989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43042469 + 43042470.

It is an arithmetic number, because the mean of its divisors is an integer number (43042470).

Almost surely, 2^86084939 is an apocalyptic number.

86084939 is a deficient number, since it is larger than the sum of its proper divisors (1).

86084939 is an equidigital number, since it uses as much as digits as its factorization.

86084939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 86084939 is about 9278.1969692392. The cubic root of 86084939 is about 441.5457667106.

The spelling of 86084939 in words is "eighty-six million, eighty-four thousand, nine hundred thirty-nine".